what are some pranks involving shampoo?
user
1. Pouring shampoo onto a friend's head while they are asleep.
2. Shampooing someone's hair with a hose in public.
3. Filling an empty bottle with shampoo and putting it under a sink as a practical joke.
4. Pretending to be from the grooming section of a store, then surprise-shampooing a passerby on the street.
5.Replacing perfume with shampoo in someone's bathroom cabinet. 
6.Insta-shamazing: applying self-tanning lotion, then pouring faux-tan shampoo onto someone’s hair for an instant dye job.
assistant
what are some pranks involving shampoo?
user
Some harmless pranks involving shampoo include pouring it all over someone's head and smearing it in their hair, "shaving" someone's head with a fake razor and shampoo, or placing a bottle of shampoo in the microwave to make funny faces. These are all good-natured jokes that can bring laughter to any gathering!
assistant