Exactly right, which means leaving the smoke bombs at home. Don't get me wrong- I like them, but what I like even more is the fans being able to get one up on the high viz hoardes.
Sing and dance and watch their raging faces knowing they can't do a thing about it because no rules are being broken. As soon as yellow smoke is seen, they can wade in and justify doing whatever and whoever they like. And if that happens and their arrest figures go up, their numbers go up in the future making for a worse atmosphere and costing our clubs money.