if (caller.vehicle) { print_to(caller, "You can't spawn monsters while driving a vehicle"); return; }
if (STAT(FROZEN, caller)) { print_to(caller, "You can't spawn monsters while frozen"); return; }
if (IS_DEAD(caller)) { print_to(caller, "You can't spawn monsters while dead"); return; }
if (caller.vehicle) { print_to(caller, "You can't spawn monsters while driving a vehicle"); return; }
if (STAT(FROZEN, caller)) { print_to(caller, "You can't spawn monsters while frozen"); return; }
if (IS_DEAD(caller)) { print_to(caller, "You can't spawn monsters while dead"); return; }