The internet is awash with videos of people having buckets of iced water tipped over their heads. It's all in the name of a good cause: the viral is aiming to raise money for research into ALS (amyotrophic lateral sclerosis, a form of motor neurone disease) - although its potency has already been watered down by issue-thirsty celebrities, according to some.
In among the great downpour of online ice-bucket challenge videos are a few pearls so funny that they're guaranteed to leave not a dry eye in the house
