Smell it?

I remember that day pretty well. I‘ve just met this friend for the first time in my life. He seemed to be a little embarrassed about the smell in his car, which by the way I didn‘t smell at all! So when he apologised for it I reckon it was rather risky to make a joke. (Maybe he wouldn‘t know I was just kidding). 

His reaction: first a bit shocked but then a funny „Aaahhh! That‘s how you play it! Good to know!“ which cleared the air.