'Having a bad day' shouldn't excuse you when ruining people's games.
I hear this term thrown around a lot, especially when it comes to defend the poor plays of players who obviously don't do the team a favour by playing at the wrong time.
Here's the thing - if you refuse to play safe, refuse to itemize, and most of all despite being behind refuse to listen to those more experienced than you then I don't care about whether you're having a bad day. You're a burden and that's that. The only way you can learn to be less of a burden is by learning to get carried when behind or actually take frequent breaks between your games.
It goes without saying If you're tilted, don't start a game. If you're tilted not only are you losing your own hard earned points but also causing others to lose theirs. Not to mention tilting others and killing their entire day's enthusiasm to rank up.