People do use those bags in the back of the airplane seat.

I have experienced occasional turbulence on flights previously,but have (thankfully!) never had the need to reach for a barf bag before..or experienced anyone else close by having to,either.. as the bag is plastic lined,I have seen them put into use as an icepack when filled with icecubes from the drinks cart..

never seen it used and i hope to never have to see it lol.. i never fly though.. im scared to.. i have had flights from hell before and i refuse to fly over water.. i like road trips anyways lol

I had to grab one on a return flight from Vegas. The flight started out on a bad note when the captain thought it was wise to tell us that they had hurricane force winds in and around Chicago(where we were landing). He said he didn't foresee any problems but he himself had never flown in winds that strong. Gee, thanks captain for that little insight to your flight experience. So the flight wasn't bad until about a half hour out. I was just unpreparred for the turbulence. Up and down and up and down and up and down.... Usually I have a bottle of soda, this flight I didn't. So, I was thirsty and queasy and we were almost home and I couldn't get up because of the turbulence...and then it started. I didn't actually vomit but I had the heaves. I just wanted so off that plane.