Not a drug deal but I had the Police out to a situation yesterday in town, 2 young children in a parked car, no sign of an adult after 10 minutes. Dad turned up, a lucky chap, bet he does not do that again......... 
Good call Mike.
I saw an unattended baby in a front garden the other day - right near the gate.
Watched for 10 mins, no sign of life.
Ended up knocking on the door and asking what they thought they were doing!
I must confess I'm very lucky where I live. My nephew plays out the front when he's here but the whole estate is fenced in and, for a 4 year old, he knows he can't go onto the road or past the end of the house. We see so few cars/people other than those who live here you can count them on one hand!
It's a shame the world has become so unsafe for children but, luckily, this particular area of Suffolk is still stuck in olden times.
Not often I'm grateful for it TBH but this is one time! It's a bit of a drag when the nearest supermarket is 8 miles away and the nearest pub is 4 but worth it!
