effects needed :
anim of sitting on toilet
leaving a turd [or a mess if eaten irradiated food]
flushing does nothing but swirl it around meaning you cant use the same toilet twice due to bloatflys
+1 rads added to toilet area used
cons :
if you dont take a dump everyday >
aiming goes off due to itchy feet
pale and gaunt face [ghoulish ?]
soiling the armour [requires cleaning with abraxo]
bad karma for stinking up a room
companions threaten to leave
stool can also be collected to use when stealing,you leave one in a room to clear it out to steal stuff with no karma loss.
you can also take a dump in a location to infest it with bloatflys to cause mayhem to non essential Npc`s,or just to clear an area for use as a base.