In the last few months, my son has thrown up a few times while eating in his car seat. I guess it's from the bumpy ride or just being shook up generally. So we are not too keen on him eating while driving. Last week, he started coughing as if he was going to throw up so we quickly loosed him from the car seat. He was elated (he hates the car seat), after making sure he was ok, we decided to put him back. Would you believe the child started to cough again in an attempt to prevent us from putting him in the seat. He just turned two at the end of May and he already trying to outsmart us.