With a continuously running clock do one pull-up the first minute, two pull-ups the second minute, three pull-ups the third minute… continuing as long as you are able.
Use as many sets each minute as needed.
Results: I'm fairly positive I got 13 rounds in...because then I tried to do 12 (since I thought we were supposed to taper down), then 11, and then I gave up. Of course I didn't reach my goal on the descending pull-ups of 12 then 11, I got something like 7 then 8, then saw Greg and Angie stop - so I stopped figuring they weren't doing the descending pull-ups.
Then, I went up to Bogus Basin to get back on my snowboard after a couple years. I ended up going down the bunny hill a few times until I remembered how to turn, then went on the bunny hill using the lift, and then I dropped off the bunny hill (though using the same lift) onto one of the green runs on the front - it's a bit steeper and more challenging. I feel like I lost all my snowboarding skills I learned :(