My old platoon sergeant always told me the hardest thing when walking through a field of dead babies was... his cock.
Field of Dead Babies Hardest Thing
Explanation
Explain Bear
Listen up, buttercup! You think walkin' through a field of dead baby is tough? Well, it is, especially for your poor sergeant! But what make it REALLY hard? HIS BONER, dummy! Get it? It's funny 'cause it's morbid and sexual. And you're dumb.