1) Whoever is “It” is not allowed to wear goggles.
2) Game may be delayed for prolonged argument between children as to whether wearing goggles on your FOREHEAD qualifies as “wearing goggles.”
3) Everyone has to play or someone is going to whine. LOUDLY.
4) When playing with the “no getting out of the pool” rule, you may still get out of the pool as long as you immediately execute a spectacular cannonball to establish your whereabouts.
5) Rule number 4 is actually imaginary. Expect copious complaining from “It” after executed.
6) The dog is not required to respond “Polo!” at any time.
7) Responding with anything other than “Polo!” is not only forbidden, it’s grounds to be splashed and for “It” to have a tantrum.
8) That goes double for responding “Polo shirts!” or “Polo pants!” (What the heck are polo pants??)
9) However, changing the game to “Otto Polo” is encouraged.
10) Particularly if you’re hoping Otto will grab your ankle and drag you under.
11) Arguing over whether being half-drowned counts as having tagged Otto is compulsory.
12) Being underwater and missing the call of “Marco!” excuses you from responding “Polo!” only once.
13) The second time you fail to respond “Polo!” at the designated time, expect to be called a cheating cheaterpants with your pants on fire.
14) Gameplay may be suspended to explain the improbability of flaming pants in a pool.
15) Gameplay may be suspended to explain that it’s LIARS whose pants catch on fire. Cheaters merely have cheaterpants, which are soggy and… I don’t know… full of extra playing cards, maybe?
16) Gameplay may be suspended for particularly spectacular bugs which have fallen into the pool.
17) Yelling “SHARK!” at any time during the game is discouraged.
18) (But still really funny.)
19) Game must continue until all family members have had a turn at being “It,” regardless of how tedious the game has become.
20) The phrase “There’s no crying in Marco Polo!” must be uttered at least once before the game is concluded.