First of all, it's kinda weird to speak to people you know - let alone strangers - in a bathroom. But no, you don't let that stop you. You solider on and shout from your stall "how about a courtesy flush!?!". My response? GFY. Explain to me why I should bukakke my under-carriage with shit & piss just to offer you a minor reprieve from the stench of a fresh dump? Aside from the sheer disgustingness of the misting of awful associated with said courtesy flush, it's just plain stupid. It's a bathroom for f's sake! It ain't gonna smell like a damn rose garden. Mind your own business, pinch one off and move on with your day.