Sorry to hear about your son Omg, Hopefully he'll be ok now and into the future.
Amazing how what should be the most obvious still manages to escape us sometimes when our vaping toys aren't working as we know they should.
"toys" always do that.. vape toys, computer toys.. so many nights wasted on solving pc problems that were 10 sec fixes :x (and this is why u always get 20 standard questions when u dial a computer helpdesk ... ;p )