What Should & Shouldn't Be Allowed??

From a slightly different perspective - theaters should not be allowed any seating that is not clearly signposted as being (for example A32 or G43 or M88) or whatever. Tiny little bits of metal attached to the floor that can only be seen by an owl are of no use when your audience is made up of myopic people with arthritis in the knee.

Make it easier for people to actually find the seat they have paid for and everyone will benefit, how many times do I have to go through the "excuse me you are in my seat" routine because the row and/or seat numbers are virtually impossible to read. At a show last week and seat number 43 was that worn that the number looked more like 13 and thus caused confusion for virtually everyone on the row as it was placed at the entrance to the row.

I'd already pressed like your comment, but... then I realised you were just talking about theatre shows. I thought it was a life comment

( . . . and it looks hideous!)

Should have: electrodes built into every seat, controlled by ushers from a desk at the rear of the auditorium.

Woman in P22 is taking photos. Zap.
Man in F12 checking Facebook. Zap.
Drunken hen party along N row think it's a singalong. Zap, zappity zap zap.

I think a tranquilizer/stun gun/evapporator should be issued to everyone on this board upon membership. We'll soon end the bad behaviour and between us we see almost everything. That way we can also zap the noisy ushers.

Groups of teenage girls who go and see anything with sex involved

The last 20mins of Cleansed where almost spoiled by a group who found anything sexual or with nudity in ABSOLUTELY HILARIOUS!
It was like 'dudes, she's being raped!' Not cool

Drinks can be allowed in, but only in plastic cups, and never with ice. Preferably in small quantities too - it's useful to be able to stave off a cough, but you don't want to be the idiot tromping noisily out of the auditorium ten minutes before the interval.

That. My personal bugbear too.

If I ever bought ice cream in the interval (which I never will given the ridiculous prices for such a small tub), it'd never last that long anyway.

In addition to headbobbing, of course you can have a good gander at the girls (or guys) in short skirts or tight outfits but don't spend the whole freaking show eyeing up the performers. Or at least try and be subtle about it.
There was an audible disheartened sigh when the girl the man beside me was staring at did a cartwheel and he discovered she was wearing some shorts underneath her dress.

Personally, I would only allow people that have their coat/bag game sorted into theatres so you don't have to wait while they gather up their belongings when you need to get past.

At the WOS Awards I was sitting next to someone who had apparently bathed in Angel perfume. I thought for a second I'd fallen through a time portal to 1993 and Kiss of the Spider Woman was about to clean up.