65 Dart. Brake lights and dome light stay ON....Why ??

Thanks, Dave. I am pretty familiar with what it takes to make the cars start and run, I am a little fuzzy on the interior wiring, dash and HVAC stuff too.
I had an 84 Chevy truck that did odd stuff sometimes. The wipers woud sometimes not want to shut off. The dome light would stop working when the horn relay burned out. The ALT/BATT light came on sometimes if the oil pressure was low, even at freeway speeds. Strange, huh?