the idea of a man killing him self because he can not bare the shame, kind of sounds way too romantic to have been particularly common it the realm of real flesh and blood men
In which period of Japanese history? The oldest recorded example of Japanese ritual suicide only really dates back to the Genpei War.
Very interesting question OP.
Almost everything I know about medieval Japan I learned from 'Shogun' and 'Gai-jin' by James Clavell. I actually have a follow up question. Is 'Shogun' (a fiction novel set in 1600) historically accurate?
Baring the shame has some practical issues as well. One can imagine that when suicide is romanticized as it was in feudal Japan, the option can become more attractive to the broke and hungry. There are instances of masterless samurai choosing death after their lords had died. This is called "Junshi" or 'loyalty death.' I cannot find many examples during the sengoku period, my guess would be because work was very prevalent for any trained fighters. A famous example would be the death of Sendai's Date Masamune in 1636. His retainers died in the traditional fashion of cutting their stomachs open.