Maybe he's nervous and shy and perspiring a little.

I had a friend, a history major like me, who was accosted at Schiphol Airport in Amsterdam, by an anxiously perspiring European saying, You're Indian, you're Indian! Can you help me fix my laptop?

Either you go up there and tell him it was you who did it and chop it off clean so he never comes crying to you again or you hold his hand, wipe his poor, perspiring brow fan his smoldering, dampened ego so it can burst up into flames and burn...