Passwords. We assume a hard to guess and everchanging password will be hard to crack, but the whole point of machines is that it can be pinpointed with utmost accuracy, and everytime someone tells you to use special phrases in passwords, they're also inadvertently saying "hey thieves, here is what to look out for, happy guessing". They're supposed to be more like speakeasies.

I remember long ago, when I was active as Dabran2 on Neopets, there was a vault with nine dropdown menus that you had to guess the combination to on the moon Kreludor. It was simpler and far more effective. To this day, I couldn't tell you what's on the other side (or I'd have to annihilate you and feed your remains to the turmaculus, assuming you believe I made it to the other side).

Doctor Mike says not to do it, but I have been for years. This started when I got a wax ball that impacted against my eardrum and made me functionally deaf on one side until I could get into an urgent doctor's appointment. The very next day, the same thing happened on the other side. I knew what was up for the second time and was able to get something from the pharmacy to handle it myself.

As best I can tell, there are two dangers:

1. Mechanical damage, perhaps caused by accidental means
2. Leaving bits of cotton behind that can then become infected

For me, I am fine taking this risk and plan to continue doing so daily.