Please do not ride the wrong way down a busy one-way street. You hit cars crossing said street. You are hurt (though thankfully you are wearing a helmet) and possibly get cited and I feel like shit.
I like biking and I think it is awesome way to commute and we live a very bike-friendly city. Please use the bike lanes even though you are thinking it will get you home 10 minutes earlier.
Sorry I just feel awful and wish my car hadn't ruined someone's day.