There is an anecdotal story about Finnish Marshall Mannerheim , who intentionally lighted a cigarette when Hitler was present during his birthday party . People gasped as it was wellknown that Hitler despised smoking , but he didn ' t say a thing . People claim that Mannerheim did this on purpose , because he wanted to see who had the upper hand and they were negotiating about the war effort and what Finland should do . Although Hitler was a gatecrasher to his birthday party and Mannerheim hated him . Could you imagine having a party and literally Hitler gatecrashes it ? Also , from that meeting is the only known recording of Hitler speaking normally . Finnish audio engineer secretly recorded him speaking and it is of course on ClR 9 tcpKZec .