“My senior class was 1970 and some of the guys swiped a full sized fiberglass hereford bull from in front of the meat market and put it on the school roof. Not sure how they managed it, and never found out who was responsible.”
Some friends tried to do that in college. Swiped the bull off the top of a grocery and were going to put it on top of a women’s dorm on night.
A security guard caught them coming onto campus with it and said if it was back on top of the grocery when he left work in the morning (it was) as far as he was concerned it never happened.
http://www.oredigger.net/news/8-news/2837-a-great-rivalry-mines-battles-denver-in-1919.html
Was trying to find a prank involving the stealing of the football team’s mascot (a donkey). Instead came across an even better one.
From 1919 involving dynamite, rifles with bayonets, and branding!