Tommy decides to visit one of his friends, but he didn't get to properly say goodbye. No matter how many times he demanded his dad turned the car around, Tommy had to go...
Days later, they got into an argument about it... and Tommy was rendered homeless with enough battery in his phone for 1 call
This can go one of two ways:
Fluff:
Whoever he calls comes to pick him up and they go live with each other yeayeyayeayz
Angst: the person he calls cant help and before Tommy can ask for them to call someone else, his phone dies
Angst/fluff
He left his phone inside and has to wander around the streets, eventually curling in an alley as it started to pour with rain. In the middle of the night. On a walk the next morning, friend finds him and yeah
