On the way down from the 15th floor in the lift in a hotel in a small town in Germany:
A- What brings you here?
B- I am here for a conference on addiction
A- Ah… interesting… Are you an addict?
B- I was an addict 30 years ago, but I am clean now.
A- Well, …have a good day then.
Emm, not quite overheard.