. Many people get drugged in Los, I got drugged in my hotel room years ago, a friend of mine who is a high level Dr got drugged, lots of people I've met have at some stage been drugged and woken up robbed.
You have to learn about Thailand's dangers and be weary of them, my Dr friend got hit when he went to the toilet in a restaurant, and the girl still managed to get him home, he woke up minus lots of money and his laptops and phone gone, CCTV caught the girl on camera, very high class, but never caught her.