It was a dungeon and you didn't stay (or live long). Long incarceration wasn't done until 1400 years later.
According to early church tradition, Peter and Paul were incarcerated in the Mamertine jail by the Emperor Nero prior to their execution. It is thought to be this prison that Paul makes reference to in the Bible (Timothy 4:21), when he urged Timothy to come visit him (and bring Paul's cloak) as he did not expect to get out until the following winter.

Paul also mentions imprisonment in other letters, such as in Philippians 1:13: " It has become known throughout the whole praetorian guard and to all the rest that my imprisonment is for Christ .”

Paul's suffering for the Gospel of Jesus Christ is the reason many of us know about God, the Bible, and Jesus Christ today.

Yes but if a non believer sees someone who claims to be a Christian drinking alcohol in any amount they most likely would say oh well they are no better than anyone else I don’t need that religion. Or think that Christians are hypocrites.

Depends on where your at Artrapper. There is a big difference in denominations and what sin is. In rural Utah a man 50 years old marrying a 15 year old girl for his 5th wife is not sinful but a cup of coffee is.