I know there has been threads in the past about this, but have you ever had an accidnetal conversation with someone about inflation, with them not knowing your particular quirk?
For me, when I was in college I went to a BBQ place with a group of friends, this one attractive girl in the group ate a bunch, stuck her belly out, and casually said something along the lines of "i feel like i'm going to pop".
I non-chalantly smiled and hoped i didn't have to stand for awhile.