Weclock: Sorry guys, but I have a family, and a 9-5.
Meetups sound great, but I'm busy busy busy.
taking an hour drive to meet up with some friends ain't bad.
take a sick leave
tell your wife you have a work seminar in new york. catch a plane through new york. in NY buy some souvenir crap and take a few pics (change your clothes so you spent "few days" in NYC)
meet up with gog members in Holland to visit the art museums and taste their fine dining
come back in a week.
things to remember.
use cellphone or internet to communicate (get an international roaming)
boss must like you so he will cover your ass but if he does not then:
not a seminar but extra work training program which you believe you should take to bring more money to house
don't use credit card. "forget it" and leave it a home... nor any other card. you will tell your wife that you went to the bank with your license and they gave you cash. since whole seminar was prepaid you didn't really need more than 200 bucks through whole week. which you took out on your first day.
in reality:
save up some cash so it cannot be traced.
simple.