While seeing a 47 y/o patient:
Me: Still smoking 2 packs a day?
Patient: No (said with an annoyed, somewhat angry tone)!
Me: How much are you smoking now?
Patient: I almost always come in under 2 packs a day.
Me: So, a pack and a half a day?
Patient: Yeah, on a lot of days.
Me: Sorry I insulted you by questioning if you smoked 40 cigarettes a day. It's great to know you're only smoking 30 to 40 a day.
Surprisingly, I then caught the slightest hint of a smile on his face