ok some people, exspecially adults and very fat people, cannot fart without lifting their bum. usually they lean to one side so when you see sitting people do this in exams and on the bus etc then you know Whoa There FARTY!!
but some very fat people of course can only stand up a bit..
so.. is your bum big enough so that to fart you have to stand up or shift? or else the fart does a Fart Reverse and plops back into your tummy? (then you can burp, but this takes a lot of practise so they say…)
or.. is yor bum small and fashuonable (like mine) so that any farts are totally secret and stealthy?