Will mold found on bread kill a person?

i just watched a yahoo news segment...on mold or....mould. "They" reported that there are 300,000 or more good or useful moulds, especially in making cheese and....in making anti biotics. But....I thought some information was forthcoming about whether or not it is safe to eat a piece of green moldy bread, as in....bread with just a little little bit of mold. Does anyone know if a person accidentally ate the mold (didn't see it) on the bread, if a serious medical problem would develop? at this moment, my heart is racing, my skin is turning green...I'm frothing at the mouth..and I no longer need Viagra...my god! Ok, sorry. BUT TRULY, if a person, for whatever reason, at someof the green mold on bread, would they be in trouble?