Because it wasn't the droid he was looking for!
Look out for that guy, he's got another side to him.
The extroverted mathematician looks at YOUR shoes when he's speaking to you.
Jailbreak
Because eventually, its cover would be blown.
Return Home Slash Slash Backslash Shift Shift Shift Escape
They are both going to miss every body.
In the direct line of fire of a Storm Trooper.
Because droids can't get service.
Because BB-8