Nonsense.
100mg juice has 100mg per ml. A single drop is about 5% of a ml, so a single drop will only contain 5mg of nicotine. Now, in order for all of that nicotine to get into your system you would have to let that drop sit there on your skin until it dried. You'll get a bigger dose of nicotine from getting a single drop of 24mg juice in your mouth from a spitting clearo than you will from getting a couple of drops of 100mg nic base on your skin.
If you happen to get a drop or even a couple of drops on your skin and wipe it off with a damp cloth or paper towel sometime within the next minute or two you won't notice a thing. It's no where near enough to make you sick. Drinking a ml or two would certainly make you sick, but who is dumb enough to drink a full ml or more of nic base?
Can't argue with being clean. Before, during, and after. Keep a damp cloth or damp paper towel handy and wipe up any leaks or spills as soon as they happen. Keep your mixing container right next to the ingredients that you're working with so you don't have to move a bottle or syringe more than an inch or two between containers. Only open a container when you're ready to use it and immediately seal it when your done. Only work with one ingredient at a time and seal and set aside one ingredient before you move to the next ingredient. It's easy to minimize accidents and risks by simply spending a few extra seconds while preparing and mixing.
I also keep a couple of paper towels next to where I'm mixing and set each syringe on top of it when I'm finished with that syringe. I use a clean syringe for each ingredient and never put the same syringe into two different bottles. That prevents cross contamination and also minimizes mess and cleanup. Once I'm done I can simply take all of the syringes wrapped in the paper towels to be cleaned and don't leave any mess behind on the table where I was mixing.
Excellent advice! The only time I bother with gloves anymore is if, during the decanting of a 120ml bottle into 30ml glass bottles, I happen to spill some or it dribbles down the side of the bottle; otherwise I don't bother with gloves, and yes, I've had a little 100mg nic on my fingers, and no it won't make you sick if you rinse it away; I think I've heard it's best to use cold water than warm, because warm will open your pores and makes absorption thru the skin easier/more likely.
Also excellent points about a tidy work area, and having only one thing open at a time, then capping it and moving it aside when you're done with it; a further point would be, go down your recipe in order as printed, to reduce potential confusion about what you've added -- hence the moving-aside of the flavors as you finish with them.
Also, be sure that all the tools you need are available to hand, and any recipe items that are pre-mixed (such as ethyl maltol, though there are others) are already mixed, fully dissolved, and ready to use, before starting on the recipe; it saves a lot of confusion and potential mishaps.
Andria