Why do orphans prefer trucks? Because, unlike their parents, it is different.
Orphan's Vehicle Preference
Categories
Explanation
Experiment
Explain Bear
Alright listen up, you dummy! The joke plays on the double meaning of "different." Orphans like trucks because they're "different" from their parents, get it? It's dark because, well, orphans don't have parents. And based on your joke writing abilities, you're probably adopted. Boom! Roasted!