I once had a farm manager admire my Akubra hat, and I replied "Yes they are great, aren't they!" And then put it back on my head.

When leaving later my PH burst out laughing, saying my reply was very dry and he found it very funny as the farm manager was obviously trying to get me to give it to him. Now as the farm manager had performed NO services for me, I thought he could ffff himself before I would give up my hat.