When are you flooding:
If you send too much data to the server and the server doesn't like that. Depends on the server i suppose although servers in the same network usually have the same settings i think.
Think of it like i am giving you a drink (directly into you mouth). That's ok as long as i don't do it too fast, when i do it too fast you will close your mouth in reaction to it otherwise you might choke.
I love metafoors (or however you spell that)
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