There are a few things I dabble in... None quite with the focus, energy and % of income as Busse. My wife accuses me of "collecting" old metal Coleman Coolers - I love the things!
A veterinarian buddy of mine told me this story about his late dad. They lived in Hendersonville, TN. His dad was a MD/GP. Sometime after retirement, he receives a shoebox in the mail. Relatively light. Rattles a bit.
He opens it. It's completely full of years and years of fingernail/toenail clippings.
I told the bldg maintenance guy at work this story back in 2003. I found out about a year later, he would trim his nails in the office every week or so... then walk down the hall, unlock the IT Mgrs office, and drop 'em into his desk drawer. It wasn't until a couple of years later the the IT guy starting freakin' out. Fun (sick) times...