I just unsubscribed and when I clicked the button it showed me a video clip with the text describing "Derrick" the guy who sent me all the emails. Then the button said "Punish Derrick" which started the clip. The boss walked in, chewed out Derrick and then threw a cup of coffee on him. The text then said, "Want to make this up to Derrick? Then resubscribe." Then offered buttons to do that.

Yikes. I'm traumatized!
I'm pretty sure I've unsubscribed to Groupon and never saw the video before today.