there is a number of factors we should all consider along with things like this to do with the police acting on crimes etc
1, even with a small amount of alcohol in your system you judgement is impaired.
2, These people do this every day and will know what signs to look for in you
eg
1) does the target look lost
2 ) does the target look comfortable in the present surroundings
3 ) is the target alone
4 ) could the target believe I could be possible company / friend
5 ) can the target be distracted whilst the action takes place
6 ) is there anyone who could assist the target
7 ) has the target got the appearance of being younger faster stronger etc
8 ) is it worth attacking / mugging this particular target
9 ) the reasoning behind it , it could be greed or neccesatiy to them ( robbing to feed )
10 ) you are in Thailand, thai surroundings, thai atmosphere, Thai cultures and thai morals and values
Use the above and simple things can help you improve your personal security, ie try no to look the sterotypical tourist, don't carry lots of cash valubales or cards, be aware of your personal space mine is 3 foot if your inside this there are four possible outcomes
1) your gay - I'm not back off
2) your a woman - Allways be carefully
3) your a friend
4) you want to knock me out - be rest assured I'll be ready
When your body goes I into a serious situation adrenaline etc all kicks in and your body goes into a simple mode
Fight or Flight
You decide or your subconcious mind does what you will do fight or flight if someone invades your personal space good advice simply push them out put your weaker hand out to keep them at arms length and tell them to back off.
Stay one step ahead if they have not then Put them before you into flight or flight mode. Usually shouting to back off etc will put them into it bear in mind from here they either tend to back off or go into fight mode , your weaker hand is use this to push them off balance use your stronger hand and job done.
We are all potential target for criminals every day you are right now Internet hackers when you walk to the shop and use the cash machine etc etc use the ten points above improve your personal saftey and keep your spacial awareness it could save your life or you taking back a LB one day hahaha