If you are lookng for tactics, as the previous BM stated, surprise her with a 2 - 3 hour spa treatment or send her off shopping for a few hours. I am sure that within a few metres of whatever hotel you are staying in there will be a massage parlour where you will be able to get a happy ending. If you are staying near Sukumvit,I would suggest you go to the beer Garten (soi 5 or 7, I can never remember) take a girl or girls to the Star Inn Hotel (2 minutes away), the room will cost you 200baht per hour, the girls will cost 1000baht each. There are nice hot showers there to wash away any unwanted girlie odours.
If you are close to soi 8 wander down to Lolitas if you fancy a good bl****b,
you can tell the wife back in the Hotel you are going to the 7 11 for beer or something and when you come back an hour later just tell her you got lost or stopped off at a bar for a drink or had a game of pool.
If your wife to be has not been to BKK before you might find that she will find the heat and humidity too much. This would be a perfect chance for you "to go for a stroll"
I have used all the excuses and I never had a problem. Have a great time. Look forward to hearing how you get on
