#3: cavort

my horse will cavort
but it's usually when
no one is looking

to cavort and play
would be a blessing today
a.k.a. Monday

Rhyming haiku can get tricky with the reduced words in the standard form, but it's an extra challenge! It's not necessary, of course, and might be deemed heretical! 

I like to cavort with haiku themes and forms! Oh, wait: 
     I like to cavort
     with forms of a certain sort
     with haiku a forte     

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1. to prance or caper about.
2. to behave in a high-spirited, festive manner; make merry.