So the pricing for my hall/in house catering includes an 18 % service charge. I asked the site coordinator about service charge vs tipping and they said the service charge is not a tip, that is something that is up to our discretion. She did tell me though that their servers are not paid the tipping minimum wage (i.e. the lower rate that waiters are usually paid), so I wasn't really thinking about tipping until my dad pointed out that gratuity wasn't on our invoice and he said he'd make sure to bring cash the night of. What do you guys think, to tip or not to tip?