In generations gone by the common practice was having your party the night before the wedding, this changed for two main reasons, firstly the likelihood of surviving a wedding with a stinking hangover started your new union on bad terms. Secondly the stag night became a weekend, week or even ten day trip to some glorious place way out of town, a mini-holiday if you like.
So here before you are the rules you should navigate to ensure that your prank doesn't end you up being responsible for the cancelling of the biggest day in the grooms life.
1. Do Not touch the hair!
2. Do Not do anything illegal
3. Do Not encourage adultery
4. Do Not put the Groom in physical danger
5. Do Not ever, under any circumstances, repeat a word of it until well after the wedding.
If you follow the simple rules then your bound to have a great time and create some memories. If you don't follow the rules then be prepared for the resultant fallout, I know Hollywood would have you believe everything works out in the end, unfortunately that's just not true.