Pusangas: Love Potions

Someone wrote me today, someone I don't know, who asked if I could tell her where to find Pusanga Love Oil. A pusanga is a love potion. They can be quite strong: If you make a pausanga by using a Q-tip to collect the pollen from 24 datura flowers and mix that into a tea that you brew for half an hour, the person drinking the tea will become very open to suggestion. And they will be open to the suggestions you make for years. Of course, any time one is dealing with datura, there is the chance that the person being served will flip-out and might never come back. But decoctions made from datura are the famous mickey finns that have had tourists in Colombia go and empty their bank accounts for perfect strangers, or allowed them to give up a kidney in the bathroom of a nightclub, only to wake the next orning complaining that their back hurts--only to discover that someone took one of their kidneys.
In Iquitos Peru and in Colombia, the datura pusanga I mentioned above has worked so well for some people that their desired lovers cling to them so closely that the person who administered the pusanga finally has killed their lovers just to get a moment alone in the bathroom.
So while some and probably most pusangas are worthless, some are quite potent. I have never used one, though I was tempted many times when Chepa left me and I couldn't fathom why. I thought that if I just used a pusanga she would return to me and I'd be happy again. But I knew that would be a lie: I wanted her to return, of course, but of her own volition. Still, many people who know a great deal about this wanted to help for the sake of the kids and taught me quite a lot on the subject. Fortunately I resisted. Unfortunately, Chepa never returned. Ah, well.
Anyway, one of the simplest pusangas, and one I have seen work numerous times, though I can't pinpoint why is the following, which is in the answer I wrote to the young lady asking me for the Pusanga Love Oil.
This was my answer:
"There are lots of love oils, all available in Belen market in Iquitos. There are lots of pusanga curanderos in Iquitos as well, and someone at the Belen market will steer you right.
"Know something about pusangas: Eventually, they wear off, and the person who had the pusanga might respond badly, as if they were in a love affair against their will. It doesn't always happen that way, but often enough.
"That said, the safest and perhaps one of the most successful of all pusangas is this: make the person you love three meals a day for three days (if you can get them to hang around that long). Before each serving, think of your love and spit into their food. Mix it so they won't know it.
"After 9 meals, they will be inexplicably drawn to you: Your saliva will act as a homing device to their love.
"Again, be careful. When the attraction wears off--and with spitting in their food it needn't as you can continue the pusanga for years--they can get quite upset with the feeling that they've been used against their will, despite the fact that when under your spell they will love being there."