Any peaceful protest will sometimes attract some agitators.. not quite sure what made the 5-0 steam in, though.. had plenty of time to just escort the rude chanters away..
Go easy on them- it's a long day*
I did polling clerk job once, quite boring with no tv allowed, to break the monotony.. The last few hours were the worst, and I have never felt so tired after a day sitting around!
* polling open 7am-10pm, plus there is setup / travel time..