you and Alastor (your dad) were watching Bambi because you never watched it as a kid and you were jumping on his head until you finaly watched it. Once it got to the scene where they shoot Bambis mom you started crying

"Why are you crying dear?" he asks in his usual radio voice

"th-they killed his moooom" you started crying even more and knowing that you won't calm down soon Alastor transformed into a deer and let you lay your head on his back