Why would you care at all? People tell me things like "Do you make love to your cubes at night?". My usual response is yes I do, and laugh along with them. People like these show, by their statements, how immature they are, and fighting them off with logic is useless, since they won't listen.
Going along with their insults (for me) backfires to them in ways
#1. It shows that you aren't irritated, making them irritated.
#2. It shows that you are just going along with it, meaning they won't find a reaction no matter what they try.
Just ignore and move on with your life. You have two years to live. Enjoy it.