So... A friend of mine who's a true rose enthusiast, but hasn't been able to grow their own due to economy forcing them into a studio apartment, has challenged me to attempt a rose bush bonsai. I've seen climbing roses and seen plenty of interesting stems and trunks on rose bushes, but how well would they handle being trained, wired, and back cut? Is it worth having a play for personal thrill or is this a losing enterprise from the word go and I should save my $25 on buying a bush?