Is this an example of run on sentences Because always cracking jokes people call him Jester?

Here's why:

* Lack of punctuation: There is no punctuation separating the two clauses ("Because always cracking jokes" and "people call him Jester").

* Incomplete thought: The first part of the sentence ("Because always cracking jokes") doesn't make complete sense on its own. It needs the second part ("people call him Jester") to clarify the meaning.

Here are some ways to fix the run-on sentence:

* Add a comma and conjunction: "Because he is always cracking jokes, people call him Jester."

* Use a semicolon: "Because he is always cracking jokes; people call him Jester."

* Separate into two sentences: "He is always cracking jokes. People call him Jester."

By adding punctuation and restructuring the sentence, you create a clear and grammatically correct sentence.