Wow, that's a little bit of a funny story now, but I'd certainly have been pissed off too.
I also had a catheter when I first got out of surgery. Quite uncomfortable and painful when they removed it, eeeyowtch! Since I was still in the step-down unit with four other patients, some of their visitors and three nurses, I had trouble peeing into the little plastic pitcher they gave me. Stagefright encouraged me to figure out how to stand up and disconnect the IV-hanging, brown-goo-food-dispensing, oxygen-monitoring, annoying beeping machine, and wheel it behind me to have a pee in peace, while flashing my backside through the silly unfastenable hospital gown proudly to all who watched.
Eric, I hope we haven't scared you too much! I hope your surgery and recovery goes well. Let us know how you're doing when you are able to. We'll be thinking about you.