Clothing Damage/Real Life

In a rather bizarre case in Real Life, the 20 July 1944 attempt to assassinate Adolf Hitler only resulted in him getting minor injuries and having his trousers blown off. Four others died.
Severe clothing damage, including naked victims, is common enough in high-explosive detonations that first responders can usually tell if they're dealing with a criminal bombing or genuine accident.
- It's also quite common for people in car accidents, either crashes or being run over, to lose their clothes from a severe impact. Many of the graphic images of victims available on the internet show them with their pants or shirts half-gone.
This isn't quite a fanservice example, but it's Egregious enough to be worth mentioning. During the Winter War, after the Russians had enough people killed by Simo Häyhä that they just decided to carpet bomb the entire forest he was in, he finally took some damage... to his coat.
In many massed melee battles in history, the amount of movement and the proximity of a writhing, stabbing, pulling, punching, slashing, and hooking masses of men can actually cause certain fighters in said battles to come out completely naked and covered in cuts. This is one of the reasons why armor of any kind, despite the numerous amounts of armor-piercing weapons, exists.