mexican food standoff

If someone is browsing a section of a shelf at a grocery where you need something from and pretend to look at other stuff until they go away. Little do you know they are doing the same thing and are waiting for you to leave the section behind them.

"I swear today I think I was waiting for someone to leave the canned soup section while they were waiting for me to leave the salsa section diagonally behind them."

"Ah, the ole “Mexican food standoff.”