I wouldn't.
What follows is an anecdote in its purest sense, because a) I don't know if what he said was even wholly true and b) there's nothing to suggest even if it was true for him then it would follow for anyone else.
I once interviewed someone for a knife point robbery. Technically I shouldn't even have dealt, as I'm not CID and it was a CID job - but they had batted it down to us as they had numerous other jobs on, and it was a knife point robbery for the massive sum of 50p. Offender had asked someone in a telephone box for it, been refused, the produced a knife and insisted. Having been given the 50p he didn't even ask for any more!
Offender had been found due to matching description, still with the knife (the 50p had gone) and there was Ok-ish cctv. There was more than likely enough for a conviction.
During the interview, the offender gave me a full and frank admission. The solicitor even made the comment on tape that their advice had been to go 'no comment' but the offender wished to be honest.
When I asked on tape why he had done it, he didn't tell me. Off tape, he said he was happy to tell me that he was really hungry because he had given all of his benefits, withdrawn that day, to his dealer. He had been begging all day, and had got enough for a sandwich - bar about 50p.
I conversed with him about how I found it strange, as I knew him, knew he had literally hundreds of convictions for shoplifting but nothing for violence, and wondered why he had gone to robbery rather than simply steal the sandwich as he had done numerous times in the past. He said it was just the frustration of having successfully begged the money from numerous people before hitting a brick wall for the last 50p and having about 10 "no" answers in a row, the last making him lose his rag.