Forcing Hermi

Anyway to force a feminized plant to hermi outdoors to produce feminized seeds?

If you let it flower long enough it will eventually hermie. Or you can shine a light on it for a few hours at night or something, doesn't sound too stealthy though.

i accidentally forced my fem to a hermie.....im a first time grower anyway i just got some black tarp and wooden spears and put them
around the plant and tried the limiting my plant to 12/12 though i did it inconsistantly enough that it stressed the plant out. Probs not the best thing to do though