Ants at the picnic explains it beautifully.
Last site I was on was the same. We stayed 1 place and they stayed wherever the hell they were at and all was pretty ok, and on neutral sites things went fine.
But no, soon as we got to 2016 they couldn't help themselves. Always showing up tryin' to goad us, causing sh*t, p*ssing us off at every opportunity, just cant leave people alone -- its like if youre not one of them then they cant stand it, drives them crazy.
Apparently 99% of all major sites isn't enough --gotta get to 100% *rolls eyes*
always the same old rationality for it too -- like a fly saying 'are you so weak you cant handle lil ol me in this big room?'
Who then proceeds to vomit all over the food, get in peoples faces and acts like its ok because not *everyone* swatted at him at all times, so guess things are working out..