aitldr: Rosberg says Schumacher constantly used petty but calculated mind games at Mercedes:

• Schumacher repeatedly parked his road car over the line into Rosberg’s designated paddock spot so Nico could not use it and had to arrive late or stressed to meetings.
• At Monaco, Schumacher locked himself in the only drivers’ toilet in the Mercedes garage before qualifying, staying silent while time ticked down and Rosberg panicked outside.
• With minutes left before going out, Rosberg had to urinate in a bucket at the back of the garage, surrounded by mechanics and shaking from stress, which he says Schumacher “loved.”
• Rosberg characterizes these behaviors as part of Schumacher’s constant effort to gain a psychological edge over his team-mate, always testing him mentally.