Mocking Monkey [Common Meter]

One day I passed a gray monkey,
and something made me turn.
I caught the primate in the act 
of issuing a burn.

Its eyes were closed; its tongue stuck out.
Its head twisted to tease.
And when it saw me seeing it,
for a sec, it did freeze. 

As if not a thing had happened,
and it was not to blame.
Before I could make my rebuke
it multiplied my shame.

by blowing me a raspberry
followed by a big smirk.
Then it scrambled away before
I went truly berserk.