Single tailed goldfish are a long term commitment living 10-30 years on average. Fancy goldfish in my experiences live 6-10, so a shorter commitment. They also don't get as big, but can have problems especially with the swim bladder because of their shortened bodies.

There was guy in Northern Wisconsin killed this past week. He worked at a lumber mill. He went in to unblock a clog in a debarking machine, the one with 6 inch tines that rip off the bark of logs. He got it unclogged, and it fired back up with him in it. Very sad, and horrible way to go.