Gin Tama Vol. 21 (manga)

Shinpachi’s List of Things I Learned During My Summer Vacation

1. Never trust a guy in a turtle suit!
2. Sometimes the age to wisdom ratio isn’t what it should be.
3. If you want to see how a woman will age, look at her mother.
4. Whack-a-Mole is awesome.
5. Parents still don’t understand.