So i was on an an EJR-145 flight (http://www.seatguru.com/airlines/Con...r_ERJ-145.php). I was in seat 3B. There is only one overhead bin on the 2 seat side of the plane. Seat 3A took up the entire bin by having is bag and coat spread out. I carefully shifted his turned his bag so i could fit mine in the overhead. Since i was in the bulkhead I had no choice but to put my bag in the overhead.

3A made some rude remark about how i should of checked my bag, I politely responded that it was a laptop so i couldn't check it. I also pointed out that i was in a bulk head and that unlike him I couldn't put anything at my feet.

When we were getting off the flight he waves his laptop in my face and say "see its a laptop you can't move it around like that." So then says "So how long have you been flying for."

This was clearly a reference to my age since I am 20, but was dressed in business casual attire. I respond to him by saying, "clearly not as long as you have been an a---hole for."

He doesn't say anything and walks off the plane.