Derby House HQ enjoyed this video of Magic, a dark bay gelding, tentatively stepping into a river before discovering the joys of water.
So vigorous is his splashing that his owner, Anna Paterek, is soaked to the skin by the time they head back to the riverbank.
But Magic isn’t the only horse to play a joke on her owner, right?
We’re launching a competition to find the best equine jokers of 2014. If you think your horse qualifies, just send us a short video file or Youtube link before 17 December to firstname.lastname@example.org.
There are prizes for the best films, which will be screened at the beginning of January.
Time to get filming…