i had a friend try and do a flip in the air on a trampoline - he landed early and bit his own knee as he landed! broke a tooth and hurt his knee pretty bad - i haven't been on a trampoline since and that was 10 years ago =)
Whether your yard, or not, what a cool photo!! I am in Minnesota for a visit with my folks and sister and her family....and a 12 point buck ran through my sister's backyard last night. Many does travel through fairly often...it's fun to see, since all we see at home is possum, racoons, armadillo, and coyotes.....
Wonder where the picture you posted was taken?