I recently set a rule for myself: when I see those arbitrage opportunities on the chain that say "Hey, isn't this free money," I pause for three seconds to think—am I seeing a genuine opportunity, or is someone else just using me as a fee in advance?

The sandwich strategy, to put it simply, is that just as you raise your hand to confirm, they’ve already lined up in front and behind you. You think you're the hunter, but in reality, you're just a passing delivery person.

Plus, with cross-chain bridges having issues lately and oracles occasionally acting up, and a bunch of people in the group repeating "wait for confirmation," I suddenly feel this phrase is quite similar to "wait and see" in governance voting: not rational, but afraid of being the last to take the loss.
Anyway, I’d rather miss out now than play the enthusiastic crowd in someone else’s script.
For now, that’s it. I’ll laugh at myself later.