Guy visits his doctor.
"What seems to be the problem, young man?"
"Well, really not a problem, per se, but I've not had a bowel movement in 4 days."
"Hmm. Go to a pharmacy and ask for this OTC med. Take it per instruction and contact me if no results in 7 days."
Seven days go by, and the guy is visibly concerned.
"Um, doc, it's been 7 day since you suggested the OTC med, and nothings happening. What now?
"Hmm. Try this prescription med for 3 days and let me know the results."
Three days pass. No bowel movement yet.
"Uh, doc, the prescription med isn't doing it either. What else you got?"
"Wow. Lesse, lemme check your vitals again, check for any blockages..."
45 minutes later, the doctor revisits the exam room.
"You got me beat buddy, I can't figure out why your bowels aren't moving. Um, what do you do for a living?"
"I'm a practicing guitarist studying at a ritzy music college."
"Oh for Pete's sake, I shoulda guessed. Here's $25 for a decent lunch and a hot coffee with refill. Go get something to eat."