anchor.diff:  	var/obj/machinery/atmospherics/components/unary/vent = pick(vents)
   	vents -= vent
   
  -	if(!vent)
  +	if(!vent || vent.welded)
   		return
   
   	var/turf/T = get_turf(vent)
  
positive.code: 
  /datum/round_event/vent_clog/plasma_decon/start()
  	for(var/obj/machinery/atmospherics/components/unary/vent in vents)
  		if(vent && vent.loc)
  			var/datum/effect_system/smoke_spread/freezing/decon/smoke = new
  			smoke.set_up(7, get_turf(vent), 7)
  			smoke.start()
  
negative.code: 
  /datum/round_event/vent_clog/beer/start()
  	for(var/obj/machinery/atmospherics/components/unary/vent in vents)
  		if(vent && vent.loc && !vent.welded)
  			var/datum/reagents/R = new/datum/reagents(1000)
  			R.my_atom = vent
  			R.add_reagent("beer", reagentsAmount)
  