Zach spent months secretly learning sign language so he could sign his vows to Hallie on their wedding day and make sure her ...

A groom who deliberately dropped his bride into a pool on their wedding day has exposed a worrying new trend that experts warn can be extremely damaging to relationships.

Before Zach married Hallie, he spent months secretly learning sign language so he could sign his vows to her to make sure her parents were included on their special day.