Index: exec.c
==================================================================
--- exec.c
+++ exec.c
@@ -708,10 +708,11 @@
     if(objLF!=VOIDLINK) vol+=volume_at(objects[objLF]->x,objects[objLF]->y);
     if(objRF!=VOIDLINK) vol+=volume_at(objects[objRF]->x,objects[objRF]->y);
     if(vol<=max_volume) {
       objE=objF;
       while(objE!=VOIDLINK) {
+        if(o->oflags&(OF_DESTROYED|OF_VISUALONLY)) break;
         oE=objects[objE];
         if(oE->height>0) {
           v=send_message(objE,obj,MSG_HIT,NVALUE(oE->x),NVALUE(oE->y),NVALUE(hit|0x80000));
           if(v.t) Throw("Type mismatch in HIT/HITBY");
           hit=v.u&(classes[o->class]->cflags&CF_COMPATIBLE?0xFC098F7F:-1);
@@ -732,10 +733,11 @@
           if(move_to(from,obj,oF->x,oF->y)) goto success; else goto fail;
         }
       }
     } else {
       // Volume is too much; hit the objects it won't go between
+      if(o->oflags&(OF_DESTROYED|OF_VISUALONLY)) goto fail;
       objE=objLF;
       while(objE!=VOIDLINK) {
         oE=objects[objE];
         if(oE->height>0) {
           v=send_message(objE,obj,MSG_HIT,NVALUE(oE->x),NVALUE(oE->y),NVALUE(0x80008));
@@ -742,10 +744,11 @@
           if(v.t) Throw("Type mismatch in HIT/HITBY");
           if(!(v.u&1)) v=send_message(obj,objE,MSG_HITBY,NVALUE(o->x),NVALUE(o->y),NVALUE(v.u|0x80008));
         }
         objE=obj_below(objE);
       }
+      if(o->oflags&(OF_DESTROYED|OF_VISUALONLY)) goto fail;
       objE=objRF;
       while(objE!=VOIDLINK) {
         oE=objects[objE];
         if(oE->height>0) {
           v=send_message(objE,obj,MSG_HIT,NVALUE(oE->x),NVALUE(oE->y),NVALUE(0x80008));
@@ -759,10 +762,11 @@
     // Orthogonal movement
     if(hit) hit=(hit&0x0C000000)|0x800;
     if(!oF) goto fail;
     objE=objF;
     while(objE!=VOIDLINK) {
+      if(o->oflags&(OF_DESTROYED|OF_VISUALONLY)) break;
       oE=objects[objE];
       if(oE->height>0) {
         hit&=~7;
         // HIT/HITBY messages
         v=send_message(objE,obj,MSG_HIT,NVALUE(oE->x),NVALUE(oE->y),NVALUE(hit));