Taking the FE in CT, I was surprised at the level of security.
There was a monitor in each bathroom plus a big sign that said "No Talking!" There were about 2 proctors for every 20 examinees, one who was in charge and then a backup. The first guy sat at the table in the front and watched, while the second one circulated around the section constantly. It was a little unnerving, to be honest - he'd just come right up behind you and look over your shoulder for a minute or two, and then 15 minutes later he was back again to stare at what you were doing.
Some of it did make sense; they put an FS examinee at the same table as an FE examinee, alternating people so you couldn't look at the person next to you (the tables were big enough that you'd really have to turn your head to see anyways). Your watch had to be on your wrist or on the floor - and they did enforce that with the guy next to me, who was told within 2 seconds of setting his watch on the table that it had better go back on his wrist with the quickness.
They were nuts about cell phones and rightfully so. You could turn yours in to the proctor's table and they'd give it back to you after the exam, though.
They were not allowing cushions or other types of padding for the awful seats we had to sit in. I saw two girls who tried to bring one in, and they had to leave them at the information desk. I balled up my sweatshirt and sat on it. The lighting wasn't the best; my eyes ached at the end and I have good contacts (brand new that morning).
The thing that got me was bathroom access. The facilities were closed immediately after the AM session and we were all locked out of that entire area of the building. We were not told beforehand that there were no restrooms open in the rest of the building. I was too busy during the AM session to make a head call, and we were ushered out of the area so quickly after that session I didn't get a chance to use the facilities. I literally thought my bladder was going to explode. In retrospect I probably could have gone out to find a Dunkin Donuts or something with a public restroom but this was in downtown Hartford and let's just say I'm not one for exploring that area on foot without my husband or a male friend with me. It's a big freaking sports arena; I know for sure there are bathrooms elsewhere that could have been unlocked during lunch.
We were instructed not to talk about the exam after the morning session but during lunch I saw and heard many groups of friends discussing the morning's session in pretty substantial detail. Really, saying "Man, I thought the E&M questions were a real b*tch" is one thing - asking your buddy, "What answer did you get on the question about XYZ?" is another. I thought some of the kids really danced on the line of appropriate discussion of the morning session - yeah, it was over by then, but there was still the PM session to go, and personally I'd have wanted to avoid any appearance of impropriety. I didn't know anyone taking the exam since it's been a while since I finished school, and I kept to myself.
For every one of the stupid sounding rules, I reminded myself that at some point some enterprising individual must have tried to cheat via one of those methods - so there was probably a good reason for having the rules!