What do you guys do when going to a place where {knives are prohibited}?
Fixed that for you. You have five choices with various levels of risk:
1) Ignore the prohibition and risk getting kicked out of the venue and having your knife confiscated.
2) Sneak the knife in by circumventing the security procedures and risk the embarrassment of getting caught.
Options 1 and 2 are morally hazardousness and potentially have huge legal implications, both criminal and civil.
3) Leave your knife at home or in your car if you know in advance.
This option is decent because it avoids a lot of the hassle of the other choices. But you sacrifice a tool.
4) Refuse to be patted down or refuse to submit to the security procedure.
This one takes balls, and you have every right to refuse to be searched in an intrusive manner. This works for police checkpoints in subways as well as private venues. You will be refused admission to the venue and you will have to turn around. This gives you an opportunity to place the knife back at your office, car, or home...or if you can make a quick trip to the post office...allows you to mail your knife back home to you so you can get on a train.
5) Take the knife out of your pocket and ask the security guard to safe keep it.
I went to a place of worship with very high security in NYC that, unknown to me at the time, was under a credible threat of being bombed by genuine terrorists. An off duty police officer was the security guard who ran the metal detector. I literally walked over to the guard, handed him my knife, and asked him to look after it while I was in temple. He looked at me like I handed him a hand grenade...then shrugged his shoulders, wrapped it in a napkin, and placed it in his desk. I got it back on my way out. Easy. My wife and in-laws were horrified.
Pat down? Is this Russia? Lol - there are plenty of other places to go, I'd say. If they want to violate my 4th Amendment protections, they get none of my cash.
Of course, a private business can't violate your right against unreasonable search and seizure because
this right only applies against the government, not private people or entities.
[H]owever, local theaters are starting to search women's purses under the guise of checking for weapons. They're really just checking for people bringing in their own drinks or snacks.
Screw that. Have your ladyfriend's tell them that their pocketbooks are private and that you want a refund for your tickets.
Unreasonable searches by private businesses are a huge problem and you shouldn't submit to them on the general principal that coerced touching of your body or property amounts to a form of unwanted touching...a battery...even if you grant them reluctant permission.
A private business can't detain you if you refuse to submit to a search unless they really believe you have stolen something. I refuse to submit my receipt when I leave a Costco if there is a huge line. I already bought my groceries, and they belong to me, and the only way they can stop me is if they have actual reason to believe that I stole a giant package of Bounty. Sure they could take away my Costco card, but they can't actually arrest me.
That's my two cents.