The Asian forest scorpion is very common in the pet trade because its sting is usually not deadly to humans. On the other hand it apparently still hurts a lot.
Asian Forest Scorpion (Heterometrus sp.), exhibited at the 2014 Canadian Reptile Breeders Expo.
There are in fact several closely related species of Asian forest scorpions but they all look alike and often treated the same way in the pet trade.
The sting of the Asian forest scorpion is described as similar to being stung by a hornet, so do not expect anything pleasant if you do get stung by your pet Asian forest scorpion. Asian forest scorpions also have those evil looking pincers which are as dangerous as they look, so trying to pet a scorpion is not recommended.
On the other hand if you can restrain yourself, and you are content with just observing their behavior, Asian forest scorpions can make interesting pets as they tolerate captivity quite well.
In the wild, Asian forest scorpions actually live in forests in South-East Asia. Both in the wild and in captivity Asian forest scorpions eat insects and other small animal up to the size of a mouse.
if you are new to keeping scorpions and you are looking for a less dangerous alternative you might want to start with an emperor scorpion instead.
Further Readings:
Asian Forest Scorpion Care Sheet Information and Facts.
Asian Forest Scorpions Care Sheet.
Heterometrus on Wikipedia.