Haven’t made enough mistakes at Belltown Underground yet this month? Well, you have at least one more shot! Friday night marks the welcoming party for this weekend’s Emerald City Open bike polo tournament. The party is open to everyone and starts with a fast paced “polocat” down the hill from TT Minor to the party. Of course you can also just show up at the end for the party. There will be more minibike disasters, dancing, raffles, a photo booth and beverages, so you should probably show up with your regret shoes on. You know, the ones that hose off easy.