I've seem some strange things in my 30 years of playing. I've held a 5 opening bid.
I've had a partner who went minus 7,000 on a deal.
But, in 2005, I saw something I've never seen before. In the National Open Pairs in Denver, my partner opened with a 7-bid! Yes a real-life 7-opening!
After three passes, David Berkowitz held: