We're in Canada, bro

Today, at work, as I was walking towards one of my tables to check on them, the guy felt the need to hold up his empty pop glass and shake it, just in case I was too stupid to notice that he needed a refill (or in case he, for some reason, thought that even though I was walking directly towards him and making eye contact, I was going to ignore his needs). 

I figure, maybe this guy is really thirsty, and can justify being incredibly rude. 

Then he did it again and I almost punched him. 

I've decided this: If ever I get a customer that snaps his fingers at me to get my attention, I will quit my job, only so I can dump a pitcher of Pepsi (or hot oil, depending) on the dude without getting fired. I wholeheartedly believe that putting the dude in his place will be worth losing my job. 

I'm sure every server ever will agree.