No
This is a complex sentence. The sentence has two parts, a dependence clause and an independent clause. The dependent clause is "Especially after a rainstorm" and the independent clause is "Santa's Little Helper likes to sit in his porch swing and think." If this sentence was only made up of a dependent clause, then it would be a fragment.
Ok
20 word limit sucks, so I’ll just say that I hope you’re doing okay. Stay safe out there, bro.
This is not actually about nature it’s meaning nothing good can stay. In the outsiders this poem is used. When Johnny dies he says stay gold to Ponyboy meaning stay good.
A stricked a cruel trickster