The intricacies of human language may have fouled them up, or perhaps unfortunate slips of the tongue led them to ignominy. Whatever the case, there's a lot to laugh at. Unwise statements made on resumes and cover letters. People without common sense go rafting. Tenants complain to their landlords but don't proofread.
Young children make hilarious observations.
7th through 12th graders give creative wrong answers to exams. In today's litigious society, products need ridiculously obvious instructions. Famous last words about science and technology. In the general public, you can't hide from stupidity. Verbal blunders from one of baseball's legends.