Crossing the Line

Inspired by the Merrie Melodies short "Bugs Bunny Rides Again".
>"Hey Pinkie, I dare you to step over this line.", pointing to a line drawn by your foot.
>Pinkie gives you a quizzical look before stepping over the line
>You feign surprise and Pinkie giggles at your reaction
>"Well I dare you to step over THIS line!", drawing another.
>Pinkie steps over it while giggling
>"I dare you to step over this one!"
>She steps over again, still giggling
>"And this one!"
*step*
>"And this one!"
*step*
>"And this one!"
*step*
>"And this one!"
*step*
>Several hours later
>"And this one!"
*step*
>"And this one!"
>But instead of stepping on ground, Pinkie stepped on nothing, falling down into the canyon below
>"He he he, what a maroon, what a stinkah, what a-
>"HI ANON!"
>You whirl around, looking for the source of the sound, but you see nothing
>Thinking that it must have been your imagination, you st-
>Pinkie suddenly comes up from the ledge
>"Hi Anon!"
>She falls back down
>Looking over the ledge, you see Pinkie land on something and then start to come back up
>She later tells you that she carries a collapsible trampoline for just such an occasion