Best probably not to invite Bird over to your camp or feed him stuff that makes him poop or give him too much beer, [ Bloody Victorians, cant handle the grog ] .
I know we all like to use our own thunderboxes and dont realy like to share And I do agree its poor form to crap so close to the camper and get Shite on the canvas .
If you must invite him, maybe offer him a bog roll and a shovel and point him out into the scrub a bit .Either that or suggest he bring his own thunderbox ..
Sorry Bird ..LOL roll eyes and whistle ..