About 10 years ago I watched a small spike buck chase a doe from one end of a bean field to the other. That little buck chased that doe for a good 10 minutes before she could finally go no further. When she finally stopped the little buck wasn't quite tall enough to do any "real damage". It was funny watching him rest his chin on her rump and lift himself up kicking one of his back legs in an attempt to do "the nasty" I kinda felt sorry for the poor guy.