when you're not on speaking terms with your shipmate can't be fun.
Two young guys I met in Durban mid-80's were preparing to crew on a 30ftmono to Mauritius. I went down to see the boat, met the owner/captain. He seemed pretty intense, disorganized and quick-tempered.
The boat was later found drifting off Mauritius. The owner had shot and killed both boys, he was unharmed but had had a total mental breakdown.
Also remember two 20-ish German or Swedish girls who left Cape Town
bound for Brazil
with a guy they'd met at the yacht club the previous week. They ended up being towed into Fortaleza, minus the captain
. He tried to rape them, they shoved him overboard
in mid-Atlantic and kept going.