What would you do? And do you know anyone else that does this?

This Christmas I was fortunate enough to get a few watches. Four of em! Three of the four are the genuine article, one is not. The knockoff is a Tag Heuer Grand Carrera from my father, who is a bit of a WIS. Initially I was blown away. I kept racking my brain wondering why my dad would sent me a Tag. My excitement soon faltered. He sent the watch in a box with no padding or packaging, no paperwork, nada. I got suspicious, even moreso when I found that the chrono didn't work and the cro