@valhalla
i did eyedropper a preppy for a bit, just used vaseline, no o-ring, no safety precautions, but somewhat careful and very regular use
it never shattered, it never leaked (i think i wrote it for ~3 fills)
but it came damn close to leaking several times
basically the threads had 0 friction anymore and would constantly start unscrewing, i just always cought it in time and screwed it back in
@inherentlee