Yep, I worked at a golf course in groundskeeping for a summer after HS. The diet of the "old timers" was absolutely ridiculous.
The worst, Jim, his lunch every day was literally a can of Coca-Cola and a can of Vienna Sausages (shitty canned tiny hot dogs for those that don't know). God knows what he ate before/after work.
He had a heart attack one day at work. Was only in his early 50s.