Wowitsdark - You are very articulate and straightforward. Why not just explain your situation to the woman who drops her off? It seems like any reasonable person would understand that the last 15 minutes of preparation before the guests arrive is a busy time and could she please drop the child off a little bit later? Perhaps look into getting the other event's start time delayed or the organizer of that event let the woman know that it's OK if she's 5 minutes late.

cj/

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