ya.i've known drivers like that too. there is a guy up in roseburg , OR that bounces around and works peak at different hubs. he's 77. he collects 2 pensions, social security, and works about half a year and then goes to europe the other half.
i met him on a meet during peak 2 years ago. boy , did he have a lot of energy . he was a breath of fresh air compared to most of our drivers. his name is Ray. some drivers in SAC know him too.