A Rhinocerous cannot sweat due to lack of sweat glands so they roll around the mud to cool themselves off. While they look extremely tough, their skin are actually pretty sensitive to sunburns. Rolling in mud is another way of getting parasites off their skin.
Why do I attach like a leech?
Why are you sweet like a peach?
Why do you commit a breach?
By making yourself hard to reach
Sinking in a sea, I try reaching for the shore
But you choose to ignore
When winds are boisterous
You roll in the mud like a rhinocerous
Maybe you’re trying to be tough
Was I a cigar to trash after a puff?
Or a parasite that you couldn’t scratch off
At my complaints, you may scoff
But I’m a bee who can sting and bite
When I feel rejected, I pick a fight
And your patience reaches the roof
I dislike it when you stay aloof!