> In many restaurants in the UK, a "tip" is automatically included for large parties to reward the extra work required but can be removed on request if they did

> In many restaurants in the UK, a "tip" is automatically included for large parties to reward the extra work required but can be removed on request if they didn't think your service was good. This is often the case in the US where it's default 18-20% for parties of more than 6-8 in my extremely unscientific recall. What's funny is that now 20% is already the default so they just made it a bit easier on the diner is all.