New situation puzzles

Michael is in prison. One day, he has luch, goes to prison courtyard for a while and finally visits the library. At dusk, out of the reach of the security cameras, he changes his clothes. He then goes through the door to leave the prison, without being caught.

Paul comes home tired. He goes to his room and turns off the light to sleep. After a while, feeling uneasy, he turns on the light and looks around. He turns the light back off and tries to sleep again. After repeating this several times, he takes a look under his bed and finds a dead body.

A man goes to the doctor to get the results of some previous tests. The results do not show up any health issues. However, he commits suicide shortly after the visit.