Somebody stop me
A Druid, right?
1. Use Create Water over a sleeping companion to wake them up.
2. Use Create Water over a non-sleeping companion to amuse yourself.
3. Summon Nature's Ally and have them pee on other people's items (bedrolls, breakfast, legs...). Try birds, messy fly-overs...
4. Same spells, have them eat friends breakfast, or steal a blanket.
5. Cut holes in everyone's water skins in the desert. Make sure you have plenty of Create Water memorized.
6. Use Chill or Heat Metal spells on buddies. Stop spell before damage ensues. Make new friends...
7. Warp wood a buddies arrows during non-dangerous times. Hope you don't make a mistake. Make new friends...
8. Constantly predict weather patterns, and attempt to drive the the parties agenda based on signs from the elements. Pretend you can actually do this for as long as you can with a straight face.
9. Speak to your gods about the "horrific odor" that comes from your companion. Aloud. Often.
10. While on watch, use ghost sound to mimic a wolf's howling. Wake party up. Hilarity ensues.
11. I loved the idea about a rhakshasa impersonation. Use an illusion that you are a comely figure of whatever sex is likely to attract the least charismatic party member. Lead him/her on in a bar or other social setting. The ask for money. Fall over dead laughing...