30 minutes is a long time to wait, but what you could do instead of acting like a four year old is:
1. Consider why it is taking so long. They are probably busy and trying to get to you as soon as possible.
2. If you don’t want to wait any longer, go somewhere else.
3. If they’re clearly just dicking around and ignoring you (which is really highly unlikely) actually confront them verbally, or again, just go somewhere else.
What fucking adult writes on a table with ketchup?
I dunno, I go back on forth on this situation. Under normal circumstances, yeah, this is inappropriate and immature. However, while I’ve been out on a couple different dates with another guy, our service was SHIT while everyone around us had quick, good service. People who came in after us got their food and left before us. Groups of 4+ vs just two people. That’s the point where I assume discrimination, and I’d fight childishness with childishness. This probably has nothing to do with the actual situation here, I just thought it was relative and wanted to vent my frustration haha. Discrimination at dining establishments DOES happen. I am normally on the servers side, but yeah. Really rude stuff does happen!