Well if I lose my temper and consequently yell at any of my friends - I make sure I apologise as soon as I calm down afterwards.
If I can I explain why I got so upset, and how my friend might be able to stop me from going nuts next time, for example by asking me to consider whether the whatever it is - is really important enough to get stressed about and what the most constructive thing I can do is. Often the tantrum is from sheer frustration, I can't do anything about it - and so once I think clearly enough to see any action is pointless - it helps me calm down.
Ie that little poem (what works just as well for athiests as believers)
God give me strength to change what I can,
to accept what I can't change and
wisdom to know the difference.
Friends (or mums) can definitely help you out with the wisdom to know the difference.
The think about having a temper tantrum, is that it is scary for other people, ie your friends and they need to be reassured that you're ok and you don't blame them for your anger. Anyone who thinks you are angry with them, is likely to avoid you.
And nearly everyone has lost their temper from time to time, not just aspies. Anger and temper tantrums can be used for good - they're not always a bad thing.