Changed my mind about leaving chips...
Yesterday, I was at a casino where they expect you to leave chips on the table. I did a wong-out bathroom break, took my higher denom chips and left a small stack of reds.
I timed my arrival back at the table just right, as the first hand of the new shoe was being dealt. They were all high cards, so I decided to leave. Relief dealer was now at the table and I said to her, "these are my chips," took them and cashed out.
As I was leaving, I thought to myself, what would have prevented anyone from coming along and pulling a "these are my chips" just after a dealer change? Nothing. No more chips on the table for me.