Redder Puns

So while tutoring a Biology study group, (mind you, they are 18-20 year old guys and ladies I'm 24 and married) I was explaining a hard concept to the group, and a girl exclaimed: "Jesusdo, you're hard!" Because apparently I wasn't making too much sense...I responded with: "Thanks, but I prefer to receive that compliment from my wife though" That girl's face went redder than a tomato the same with everyone else's and much laughter was had. :)

Edit: autocorrect messed up my username.