What is "dissent"?

[Sheffields Finest]

Appeal - "Handball ref!"
Dissent - after you've made it clear that you're not giving it, "That was a handball ref"
We don't apply that level of tolerance - but that IS dissent, by the strict word definition.

Geez, if someone considers booking for that in isolation you'd be booking the whole Kop...

Footballers have opinions, it may disagree with yours, we don't want drones, but there is a line for him not to cross, where that line is is up to you...