Beg_For_Money()
        var/mob/M
        for(M in get_step(usr.dir,usr))
            if(M.type == /mob/NPCs/F10/Person)
                if(usr.gold >= 100)
                    usr << "Go away!"
                else
                    var/randnum = rand(1,usr.gold)
                    randnum = 100-randnum
                    usr << "Fine. Here. have [randnum] gold."
                    usr.gold += randnum

//This code does not work. When I use it, it does not see ANY var/mob/M (meaning I get less gold from them as people on other games asking real people). I tried adding an "else" proc just to test the first if() statement; but it didn't give me anything. I even tried changing it to var/atom/M but that didn't work either...Here's a WORKING code for treasure chests...

    Open()
        var/obj/O
        for(O in get_step(usr,usr.dir))
            if(O.type == /obj/chest1)
                if(usr.Key1 != 1)
                    usr << "You find the Blue Key"
                    usr.Key1 = 1
                else
                    usr << "Empty..."

//Both verbs are under the parent /mob/verb/unlockables if that helps any; because you only have them on certain floors of the dungeon.