Then by all means use the hotel phone.

Most hotels list every phone call on the bill.  I would never use a hotel phone at all anymore.   Much too expensive...

Dont use them -

Also  - In big major metro cities.. especially LV- many hotels have a list of adult entertainer numbers that are on the block list through hotel switchboard ..

and my wife decided to dial a couple of them.

That was a lot of fun.

There is really no reason to. Most hotel phones are way too expensive to bother with if you have a cell phone.  I did have one lady who verified me by calling my hotel and asking for my room by my name. When I picked up she then knew that I was giving her the same name that was on my DL and came on over.

When I started, I didn't have a clue...  but I was lucky.  Luck is not to be counted on.  I promised myself I'd not do anything stupid...  and my list of stupid things rapidly expanded thanks to all the great help here on TER.  
Hobby safe,
skb

In my short career thus far I've learned several things about self preservation:

1. Hobby phone
1a. Password on the phone
2. Hobby cash credit card
3. Password protect computer
3a. auto erase the history, cache, saved passwords
3b. Never use your work computer for anything hobby related
4. Never force something to happen i.e. don't do anything out of character you will just have questions to answer and more opportunities to get tripped up.  

Have fun!