GROW SOME FUCKING BALLS AND TAKE RESPONSIBILITY YOU FUCKWIT!
I can't even count how many times I've heard people excuse themselves with sentences like:

"It's not my fault I only got a C, our teacher was shit"

"How can I finish this assignment when the teacher haven't learned me this?"

"I'll be late to work because my dick was stuck in the sink"

(This is a real one I've experienced myself. A teacher said this last week)
"I wasn't able to put up your material for your assignment before now because we're busy with exams" - The day before the assignment was due. Gj.

"He doesn't deserve to get fired, it's not his not at fault for being incompetent"

Then who the fuck is? The government? Your neighbor? My dog? A stray dog?

STFU! I'm so fucking tired of all these excuses! Grow some hair and take responsibility.
The only thing you achieve by not doing so is making everyone else drown in your disgusting vomit your constantly letting out of your mouth.