You don't have to taking flower essences for very long before you realize that everybody should be on them. Often, when you suggest such a thing, the people you care about roll their eyes at your latest "voodoo thing" that they are not about to consider. So you decide to sneak some in their drinks... I have some things for you to consider first.
Sometimes "No" means "I don't want the hassle"
There are many men who know their wives are spiking, but they didn't want to have to go to the trouble, especially for "weird voodoo stuff" that won't work anyway. One guy called me because he didn't understand the charge on the credit card. I explained what I sell and he goes "Oh, this is the stuff my wife puts in the coffee and then we're both less crabby. Ok!" And he hangs up. If you have the energy for that, this is the ideal drink spiking scenario.
Motive is everything
If this is about you being tired of putting up with their crap, and you are looking at this as a way of manipulating them into changing, you're in the wrong. That is witchcraft and a boundary breach. A good clue is that you knew better than to even bother asking them about taking essences. (However sometimes this can fall into next section's grey area.)
If I pick up on this, I'm going to steer the conversation back to you. How I help you handle their crap better? Why does it bother you so much? Many times we get triggered when we see things we don't like in ourselves being mirrored in others. Sometimes we just need to set some boundaries with this problem person.
They said "No", but you care, so you're gonna do it anyway
This is a grey area. I believe in respecting people's choices, but sometimes they aren't in charge of their own free will. If you have addictions or demons & extreme wounding running the show, your choices will be destructive. This is a person who is not choosing freely, and essences can help in a stealth mode sort of way. Sometimes there is the emotional health of other family members to consider, and one person in the family unstable can bring the whole house down.
What happens if they have a healing crisis?
If you're not familiar with what that is, jump over here and then come back. If you spike their drink, and things that they need to process come up, are they going to understand what to do with that?
Imagine if you started feeling really emotional all of a sudden for no apparent reason? Would you think about medicating, going to the doctor, would you think it was hormonal? What would this person be likely to do? Are you able to monitor and tweak dosage and make sure they're ok? Do you have a backup like Crisis Care or Stay Calm you can switch them over to if things get out of hand?
Once you've considered all these things, at least I'LL feel better should you want to go forward with your well meaning plan to help your loved one.