Snide "Aww, aren't you the sweetest?" or "Yes, and I'm so glad you are here to make me feel better about it!"
In-your-face "Yes, on the other hand I still have all my brain cells - how unfortunate you sweated them out!"
Get away "I know, it's stress-related - kickboxing really helps! Though it would help more if I could actually kick some really rude annoying people... you know what I mean?" (delivered with a smile)
what mood to choose, that's the question!
Of course you could also go the adult way:
Open and honest "I did, but to be honest I find it quite insensitive and rude on your part to make this kind of observation - it's not helpful at all."
but again, that depends on the mood
