I can understand the annoyance to some about the smell.
People using it at their home indoors bother no one.
I live remote, sometimes people on the west wing of my estate complain about the smell, i normally just sentence them to 50 lashes tho.
Completely pointless as anyone that's lived here for more than 5 minutes is fully aware of the perils on the road, or you think they've not noticed?
Like many things here, it's not gonna change so just deal with it...
Why don't you do something about it if you're so concerned?
Start preaching at schools / offices / hospitals?
Or do nothing and continue to moan about it, like you're doing.
if i have an excessive load that i've just dropped off i sometimes fill the top with an extra couple of inches of water to assist the beast in disappearing...