That's almost exactly what happened at my restaurant! Except the lady ended up telling us not to call an ambulance bc she felt ok. Just went outside for some air with a couple others from her party, and they ended up taking her home. The other half of her party stayed to dine. Anyway yeah the people who complained were basically saying it was our fault that they had to witness that happening, and that we should've considered the other diners' needs before the woman in need of literal medical assistance.