Yes, that's what I would do to show how annoyed I am and then
change seats.
I find there are more ppl eating on the buses now, and I'm not
talking about those discreet tit-bits like sweets, a bun, curry
puff or drinking water. I'd seen a woman eating a box of rojak
(luckily I was on another bus), and seeen another couple seated at
the back of TIBs bus eating "chai png" (vege rice) - you know how
smelly it turns to when in a stuffy aircon bus with warm
airconditioning....phew! I moved to the front, even don't mind
standing. I would have changed buses if it weren't that late at
night then.
Would it be of any use to tell the bus driver? I hardly think he
would stop the bus, walk to the back to tell the couple to stop
eating or get off the bus. Or better still, drive to police station
to make report and fine the couple? 
