That's a good point, Petaluk, and it's something I'd likely do because of risk of ambulance delays, jam would be good for it too, but if there's an unconscious T1 or gestational diabetic, it's call an ambulance straight away, and use any spare glucagon kit that's handy.
I read somewhere, sorry can’t remember where, that rubbing honey into the hypo persons gums was a much safer alternative as there was less chance of choking, as with liquid.
Aussie male 51 yrs on Insulin. In Oz, our Diabetes Association shops carry for sale Glutose 15 and TRUEplus fruitpunch, both gels. Gels are far easier to introduce into someone's mouth when they are hypo than juice or other liquid. In Oz, also a doctor can prescribe Glucagon to be given by injection by a partner, relative with some basic training. Hypos are potentially quite dangerous so early treatment is best. I have been given Glucagon by my wife only if unconscious ( = one occasion) but it saved a longer wait for an ambulance and the integrity of my brain at the same time !!