Children probably shouldn't be saying this particular line after you've successfully defended a village from a dragon, unless it was the developer's intent to make me laugh out loud at the absurdity.
You don't have kids I guess, I work with school kids and have heard 8 and 9 year olds say lines like this, or "Years ago, when I was just a little kid ...", on a regular basis. And yes I often have to hold back a laugh when I hear them say this.