Sentence 1: Everyone told Jim he was immature. 
 Sentence 3: It made it hard for him to sustain a job 
 Sentence 4:  So he had to find a career that let him be true to himself 
 Sentence 5:  He founded a prank shop that made him happy both ways 
 Option 1: But he doesn't like playing pranks. 
 Option 2: Even though he was twenty he loved playing pranks on people.