Because whenever his parents saw their phone bill they got the hump.
A radical mooselamb
Your parents would know!
Because everyone uses the Internet to look up phone numbers or people don't have landlines anymore and cell phone numbers aren't listed in the phone book. Also people use social media to communicate and connect with people.
Topical meme.
Revolver Camelot!
A. Hump me dump me!!
He saw the phone bill.