The only problem with them leaving would be the bill. Would they leave a tip for her? Did they even know about Muggle tipping? Would she even want them to leave a tip for her? How much of a tip would they possibly leave? And for what would they leave a tip? For her awkward half-smiles? For her clumsy way of almost smashing the plates in front of them? For how much time she took to refill their drinks to not have to be at their table for one more second? Nausea filled her gut again when she thought about it.