Bruce Mundy was in the Ponyville market picking up some general groceries while he waited for school to get out so he could pick up his adopted daughter, Scootaloo, and her friends, they were planning on doing... Who knows what, but it was all in the name of getting their cutie marks.
As he walked he heard a voice call out,
" HEY MISTER MUNDYYYYYYYYYY!"
He turns to face the owner of the voice, the local wall-eyed mail delivery pony, Ditzy-Doo Whooves, or Derpy Hooves as she was also know,
"G'day there Miss Whooves, what can I do for ya?"
"I brought you a letter!" She says handing him said letter.
"Ahh! Thanks Miss Whooves, I'll have to hire a PO box out, can't really give you my address, too dangerous, and I don't wont Scoots getting it all the time. Hmm, Ramblin', Have a nice day..."
"Hold on, you can just call me Derpy, everypony else does!"
"No thanks Miss Whooves, I prefer to call you your real name. Also how was the honey moon with The Doc? Crystal Empire all it cracked up to be?"
"Oh yeah, it's lots if fun! It's where I got your letter from to!"
"Hmm? Really? Well that's a bit off."
The school bell rings,
"Whanna walk with me to the school?"
Mundy offers, she accepts and they start off.
As they walk Bruce opens the letter,
"WE ALL KNOW YOU CAN'T KEEP HER SAFE, A GRIFFON COULD NEVER CARE FOR A PONY!" It went on a bit more but he didn't need to read it, something threatened his little girl, and they used paper with a watermark of his old TF logo. He stops and grabs Derpy on the shoulders, turning her towards him,
"Mister Mundy!?"
"Miss Doo, You MUST tell me WHO or WHAT gave you that letter! It may end up being a life or death situation."
"I-I-I don't know! It was when I was being a bit clumsy, I bumped into a few ponies, and when I got back to the hotel and checked my bags it was in there. Can you stop your scaring me"
He releases he and apologises before taking off towards the school.
He needed to get Scoots, then, once she was safe, he was going to defy a direct order from a goddess.