This is a long 'un and only those in the UK will get it:
Every day on the confectionery counter, the little m&m's used to get bullied and beaten up by the Malteasers. A wise old Kinder Egg said to them that the Galaxy Minstrels offered a protection agency.
The poor little m&m's spoke to the Minstrels and asked for help. The Minstrels agreed and sat next to the m&m's. The Malteasers never tried to harm them again.
The m&m's started to get a little cocky about having their own protection and the other sweets began to get jealous. The others had a meeting to decide what to do and voted that the Lockets were strong enough to teach them a lesson.
Sure enough, the day came where the Lockets beat the m&m's to within an inch of their lives. The confused m&m's asked the Minstrels why they didn't step in and help. The Minstrels said "We may be crazy, but they're Methol!"
I once had a teacher wet herself after that. I don't know what was funnier!?