diff --git a/src/lib/commands/load.c b/src/lib/commands/load.c
index fadb17ad..4e46212a 100644
--- a/src/lib/commands/load.c
+++ b/src/lib/commands/load.c
@@ -143,7 +143,8 @@ load(void)
 		   xyas(sect.sct_x, sect.sct_y, player->cnum));
 	    continue;
 	}
-	if (!player->owner && load_unload == UNLOAD
+	if (load_unload == UNLOAD
+	    && !player->owner
 	    && getrel(getnatp(sect.sct_own), player->cnum) < FRIENDLY) {
 	    if (noisy)
 		pr("You can't unload into an unfriendly %s\n",
diff --git a/src/lib/commands/upgr.c b/src/lib/commands/upgr.c
index 2d4c38c0..33278ff8 100644
--- a/src/lib/commands/upgr.c
+++ b/src/lib/commands/upgr.c
@@ -100,8 +100,8 @@ lupgr(void)
 	    continue;
 	if (sect.sct_type != SCT_HEADQ || sect.sct_effic < 60)
 	    continue;
-	if (getrel(getnatp(land.lnd_own), sect.sct_own) < FRIENDLY
-	    && sect.sct_own != land.lnd_own) {
+	if (land.lnd_own != sect.sct_own
+	    && getrel(getnatp(land.lnd_own), sect.sct_own) < FRIENDLY) {
 	    pr("You are not on friendly terms with the owner of unit %d!\n",
 	       land.lnd_uid);
 	    continue;
@@ -181,8 +181,8 @@ supgr(void)
 	    continue;
 	if (sect.sct_type != SCT_HARBR || sect.sct_effic < 60)
 	    continue;
-	if (getrel(getnatp(ship.shp_own), sect.sct_own) < FRIENDLY
-	    && sect.sct_own != ship.shp_own) {
+	if (ship.shp_own != sect.sct_own
+	    && getrel(getnatp(ship.shp_own), sect.sct_own) < FRIENDLY) {
 	    pr("You are not on friendly terms with the owner of ship %d!\n",
 	       ship.shp_uid);
 	    continue;
@@ -261,8 +261,8 @@ pupgr(void)
 	    continue;
 	if (sect.sct_type != SCT_AIRPT || sect.sct_effic < 60)
 	    continue;
-	if (getrel(getnatp(plane.pln_own), sect.sct_own) < FRIENDLY
-	    && sect.sct_own != plane.pln_own) {
+	if (plane.pln_own != sect.sct_own
+	    && getrel(getnatp(plane.pln_own), sect.sct_own) < FRIENDLY) {
 	    pr("You are not on friendly terms with the owner of plane %d!\n",
 	       plane.pln_uid);
 	    continue;
diff --git a/src/lib/subs/lndsub.c b/src/lib/subs/lndsub.c
index f35116ca..d7218c32 100644
--- a/src/lib/subs/lndsub.c
+++ b/src/lib/subs/lndsub.c
@@ -501,7 +501,7 @@ lnd_mar(struct emp_qelem *list, double *minmobp, double *maxmobp,
 	    lnd_stays(actor, "has no mil on it to guide it", llp);
 	    continue;
 	}
-	if (sect.sct_own != land.lnd_own &&
+	if (sect.sct_own != actor &&
 	    getrel(getnatp(sect.sct_own), actor) != ALLIED &&
 	    !(lchr[(int)llp->unit.land.lnd_type].l_flags & L_SPY) &&
 	    sect.sct_own) {
@@ -782,9 +782,8 @@ lnd_fort_interdiction(struct emp_qelem *list,
     while (nxtsct(&ns, &fsect)) {
 	if (fsect.sct_own == 0)
 	    continue;
-	if (fsect.sct_own == victim)
-	    continue;
-	if (getrel(getnatp(fsect.sct_own), victim) >= NEUTRAL)
+	if (fsect.sct_own == victim
+	    || getrel(getnatp(fsect.sct_own), victim) >= NEUTRAL)
 	    continue;
 	range = roundrange(fortrange(&fsect));
 	trange = mapdist(newx, newy, fsect.sct_x, fsect.sct_y);
diff --git a/src/lib/subs/shpsub.c b/src/lib/subs/shpsub.c
index d5063bc7..07fe00b2 100644
--- a/src/lib/subs/shpsub.c
+++ b/src/lib/subs/shpsub.c
@@ -749,8 +749,9 @@ shp_nav_one_sector(struct emp_qelem *list, int dir, natid actor,
 	getsect(newx, newy, &sect);
 	navigate = shp_check_nav(&sect, &mlp->unit.ship);
 	if (navigate != CN_NAVIGABLE ||
-	    (sect.sct_own && actor != sect.sct_own &&
-	     getrel(getnatp(sect.sct_own), actor) < FRIENDLY)) {
+	    (sect.sct_own
+	     && sect.sct_own != actor
+	     && getrel(getnatp(sect.sct_own), actor) < FRIENDLY)) {
 	    if (dchr[sect.sct_type].d_nav == NAV_CANAL &&
 		!(((struct mchrstr *)mlp->chrp)->m_flags & M_CANAL) &&
 		navigate == CN_LANDLOCKED)
diff --git a/src/lib/update/ship.c b/src/lib/update/ship.c
index e0db6194..39f22c0e 100644
--- a/src/lib/update/ship.c
+++ b/src/lib/update/ship.c
@@ -267,10 +267,10 @@ shiprepair(struct shpstr *ship, struct natstr *np, struct bp *bp, int etus)
     mp = &mchr[(int)ship->shp_type];
     sp = getsectp(ship->shp_x, ship->shp_y);
 
-    if ((sp->sct_own != ship->shp_own) && (sp->sct_own != 0)) {
-	if (getrel(getnatp(sp->sct_own), ship->shp_own) < FRIENDLY)
-	    return;
-    }
+    if (sp->sct_own != 0
+	&& sp->sct_own != ship->shp_own
+	&& getrel(getnatp(sp->sct_own), ship->shp_own) < FRIENDLY)
+	return;
 
     /* only military can work on a military boat */
     if (mp->m_glim != 0)