Side note

Guinea pigs drink from the standard small pet bottle. It has a spout with a ball valve - they can push the ball in with their tongue to get water out. The rats I had as a pet (MUCH better pets than guinea pigs, should you be in the market for a pet) would just lick at the valve and get water very efficiently. The guinea pigs put their WHOLE MOUTH over the spout and bumble around for water. Every time I see them doing this, especially Snufkin, who is large and generally inept, I think of Parks and Recreation.