Now that I run my own company I have no answer when my wife decides she wants to accompany on trips abroad. Of course, as a company officical she also has some rights here so she came with me to Singapore earlier this year and just recently we attemded a conference in Monte Carlo where I gave a paper.
When I worked for my previous company it was always more difficult because of keeping the expenses honest and arguments such as "None of the other guys/gals will have their significant others with them", "It's business, not play" cut no ice and often caused no little friction. Of course she was upset when I went to a conference in Buenos Aires and the sponsors of one of the evening events took us all to dinner at a Tango theatre.
However, at my last company I attended a conference in one of the US ski/casino resorts. Some guys did have wives in attendance but one guy told us about his colleague who attended a similar conference. He refused to take his wife since he would not be skiing, gambling or anything else axcept work.
She was not amused.
The conference turned out to be more than average boring and he did go skiing.
He fell and broke his leg.
He had all sorts of problems including that he could not drive so he rang and asked his wife to fly up and drive him back. When he explained why, she hung up on him.
He now had to fly (and arrange for his car to be brought back).
He tried ringing his wife to collect him from the airport but she hung up again. He got a taxi which, because of the distance, was very expensive.
When he got home he couldn't get in because she'd changed the locks.
True or not, there is a moral in here somewhere.
PS,
when not busy shopping like there's no tommorrow, my wife proved a very effective ambassador for the company at the cocktail party, dinners and of course, at the Monte Carlo Yacht Club reception. But it does mean I can now never go back to being employed by anyone because I will never be able to revert to "me at confernce and wife at home."
JMW