Logical explanations.
People who decide to say excuses are excuses are the most ignorant and narrow-minded people I have ever seen. You don't have to believe them, but at least let them speak their case.
You can't exclude yourself from everyone who makes mistakes, whether it was under the influence of a drug or out of a severe emotion or simply because you just didn't care or know better. Whatever the circumstance may be.
By just passing everything off as excuses is like saying 'I don't give a fuck what you say, I'm going to think what I want'. As if you plugged your ears and just said blahblahblah while they tried to explain. Grow up.