Of course they knew that everyone on top of a grocery cart was NOT going to work, but they did it anyway. and honestly, it was fun, until the wheel of the cart got stuck in a tiny crack in market floor and they all together fall directly on top of someone.

"uh- sorry.." Dick mutters nervously with a nervous smile, while the other batkids just sigh or groan, nodding and apologizing, except Damian, the frowning one.