I was just wondering...we take Barney to a groomer/doggie daycare to get him bathed and/or cut. You can go to the place to play, you can go to get groomed, or you can go for both. So far we have just taken Barney to play AND be groomed at the same time. Should we tip? (The cost if you play and groom is the price of the bath alone--no daycare fee)