Interesting. Good to read that both blokes are OK, if the Blue Ringed Octopus bite has enough venom to kill 26 adults.

en.wikipedia.org/wiki/Blue-ringed_octopus#Treatment

www.smh.com.au/national/western-australia/man-taken-to-hospital-after-blue-ringed-octopus-bite-south-of-perth-20181211-p50lkm.html

Check the compression bandage - I did not realise that they were used in a hospital setting.
www.watoday.com.au/national/western-australia/wa-crayfisherman-lucky-to-be-alive-after-blue-ringed-octopus-sting-20181208-p50l2x.html?_ga=2.84710683.309194321.1544522757-11758110.1527229442

I believe I got grazed by one when I was around 15 years old .
Trying to catch a crab in a small rock pool . Didn't see it until I knocked it and it lit up . Very vibrant and small , maybe 8 cm across .
I did panic and thought I was going to die . My hand and arm slightly ached a bit for a couple hours and that was it . I must have juuuuust nicked it .
That was in Vic and never seen one again .
I have however stood on a small stingray that sliced the sh.t out of the arch of my foot . It was like riding an aquatic hover board for a second . Didn't hurt at all until I saw the sea of blood flowing off the back of my board .
Should have got stitches but I'm tough ...... took forever to heal