Anime that has punching comedy

[Glowingwings]

My sister is doing an assignment for university and she needs some examples of animes that include people punching each other for the fun of it for comedy, sort of like Brock and Misty from Pokemon, Jessie and James from Pokemon, where they get hit and are fine the next minute.

Any animes you suggest would be awesome

[Kariudo]

Shuffle! has some of that (Asa smacks Rin around quite a bit)
as does Trigun

that's all I'm coming up with atm

[kenisama]

Love Hina has a lot of punching the main character into space

[CodeZTM]

Fruits Basket with Kyo and Yuki have them being flung all over the place and being fine moments later. Especially Kagura/Kyo.

[LantisEscudo]

Almost anything by Rumiko Takahashi, but Ranma in particular.

[Kionon]

KOR has a strong slapstick element. The manga contained far less of that.

[Knowname]

Love Hina is probly the best example by FARRRRRRRRRRRRRRRRRRR

[Minimoto]

Full Metal Panic!

[EkaCoralian]

Sengoku Basara, with Yukimura and the Tiger of Kai.

[Knowname]

I change my mind that Dokoro Angel anime is proberly your best bet.