Ohhhhhhhhhhhhhh can you imagine what it would be like to have been in the house when dad opened that phone bill?

Dad hammers Wyo. teen's phone after mega-bill

The girl's parents, Gregg and Jaylene Christoffersen, thought texting had been disabled, so one can imagine their surprise when they got the monthly phone bill and it asked for $4,756.25.

"It just hit us like a rock, like you're stepping into a bus," Gregg Christoffersen said.

The bill was legit.

Dena Christoffersen, 13, had apparently been sending most of these messages at school. That's more than 300 texts within an eight-hour period every day for the whole month.

Needless to say, it drew attention away from what she should have been doing: paying attention in class.

"She went from A's and B's one semester to F's in two months," Dena's dad said.