Even if you take out any mention of veganism, I feel like this still isn’t acceptable behavior. Restaurants and cafés are assumed to have a de facto “no outside food” policy. If you go into a café, order a coffee and pull out your own lunch, you’d typically be asked to leave.

Is it extra rude to bring flesh into a vegan establishment? Absolutely.

Yeah, I feel she like she pulled this stunt to gossip to her carnist friends about “those mean vegans are unreasonable”