What Am I Saying

I do not have a license to kill But I have a learners Refrain from testing my skills For I might pass because of your ills Inspect me But do not disrespect me If you test my patience I will make you a patient Your words lack meaning That is demeaning I will get you spinning Because of my trouncing My trust you test Want to treat me like a pest I will put an end to that quest Be proud But do not be loud I have disallowed your voice to be above cloud I do not hold a grudge No, I am not a nun Excuse the pun Whilst I reach for my gun