There are absolutely things that teachers get away with that other jobs don't, but the reverse is usually true too. I have fantasized about having a job when I could go to the bathroom when I needed to, or where there was an option for taking a phone call out of earshot of others.
I haven't taught in years--but I still remember the bathroom issue. One year, I had to take one of the disruptive kids with me and make her wait outside the door. I couldn't leave her in the room with the rest of the kids.