My ex-husband worked on the grounds crew of the Baltimore Orioles in the late 60’s early 70’s. During games he was stationed in the bull pen area.
I seem to recall that when Bull Durham came out and we went to see it at the theater, he recalled meeting Ron Shelton on at least one occasion, although I don’t think he (Shelton) ever played in the majors but he was with the Baltimore Orioles' organization from 1967 to 1971.
Anyway, my ex seemed to think that it was a pretty good depiction of at least some of the goings on he observed over the years of working for the O’s, the ribbings the pranks especially those played on the young guys just up from the “farm” by the older guys. I can’t recall the player’s name but he told me there was one (perhaps a warm up catcher) who was notorious for playing pranks including putting lit matches under the shoes of any pitcher in the bull pen who had nodded off during the game.
FWIW, he told me that while Frank Robinson was a great player, he was a bit of a jerk as was Jim Palmer. OTHO, he said that Brooks Robinson and Boog Powell and Elrod Hendricks were just about the nicest guys you’d ever want to meet.
Prankster Oriole reliever late ‘60s, early ‘70s? Moe Drabowsky! Bert Blyleven may have been the only bigger doofus.