Something to keep in mind if you aren't careful about how you handle it when you eventually remove your coffee from the microwave.
...Superheating is more likely after repeated heating and cooling cycles of an undisturbed container, as when a forgotten coffee cup is re-heated without being removed from a microwave oven. This is due to heating cycles releasing dissolved gases such as oxygen and nitrogen from the solvent...
It is kinda cool if you can set up a way to do it safely. Not recommending it by any means but the effect does still work with plain water which makes post-experiment cleanup easier.
There's a Mythbusters video on the subject (timestamped for the explosion but it's a short one anyway) if you want to see what happens from the safety of your web browser.
As long as I'm here, first aid for a first or second degree burn is immediate cold running water on the affected area. This provides some pain relief and stops the progress of the burn. Don't ice it, you may do further damage if you're not careful.
Remove watches, rings, tight clothing, etc. from the burned area as well since there will probably be some degree of swelling and you don't want those items to constrict anything.
Use your best judgement to determine when to stop the flow of water over the burn. Can't stay tethered to the sink forever. Cover the injury with a dry, sterile non-linting dressing and bandage loosely. The intent is to reduce likelihood of infection since that skin is damaged and less capable of protecting itself but you still don't want to constrict the area.
Consider the need for further medical attention, particularly for burns involving the face, hands, feet, genitalia, around joints or if they cover more than 9% of your body. You can use the size of your hand as a measuring tool as it will cover roughly 1% of your body's surface area.
Do not apply mustard, vinegar, butter or other supposed "home remedies" as they may introduce pathogens that can lead to infection, damage the skin further or simply cause needless pain.
I took my water bottle to an appointment the other morning; I was there for 15 minutes.
I left the water bottle there.
I didn't realize until about 4 hours later.
That’s funny. I do this stuff all the time at work. My co workers are always bringing stuff back to my desk I leave behind. It’s usually my coffee cup, fidget spinner or my finger grip thing I mess with when I’m stressed out.
What has been interesting is that more of my co workers have little fidget toys now too. I told them it’s okay to mess with it if I leave it behind and some of them got their own.