I had two unrelated "safety-related" experiences on my Red Line commute the other day. Both hold lessons to be learned.
Report lost wallets
First, when I reached the platform to await my 6:30 am train, I noticed a black wallet sitting conspicuously on a bench. I picked it up, and noticed that it had apparently been picked over and left there. Still, I asked a guy standing nearby if he had lost his. "Nope."
So I went back to the station house to give it the customer service assistant.
The lesson here is always report to the CTA your wallet or other goods are missing. You never know when someone might actually return it.
Shoes are (probably) mandatory
I did board the next train after the wallet handoff, All was quiet until Fullerton, when I spied a bare foot out of my peripheral vision. I looked across the aisle and saw a disheveled man in dirty clothes holding one shoe and wearing another. A security agent was in the doorway ordering him off the train.
The man refused. And pierced me with a deadly stare. The security guy
called for Chicago cops. The train waited in the station. Finally, the
standoff ended when the guy got up and left the train.
I'm not exactly sure why the security guy wanted him off the train; it might have been his bare foot.
So be sure to wear shoes on the CTA.