Turbo Trainer Advice

Longest I've managed on a turbo is probably 2 hours, longest on rollers; 3. Life is too short for anything in excess of that. I'd rather get soaked outside than sit on the torture gate..

So would I but that's the point. I wanted to challenge my capacity for a different type of suffering. I know I can hurt myself physically and I know I can ride in almost any weather conditions but mentally how long can I ride indoors when I hate it so much? Boom, there's your answer.