remember to keep grounded any static shock is your worst enemy when it comes to memcals
Never killed an eprom from static electricity in the decades i've played with them and i know i'm charged alot of the time from the shocks i get touching the car 99% of the time i get in/out.
The ecu/pcm case is grounded so as soon as you touch that you are grounded (memcal is encased in plastic so it's safe).
Don't wear nylon socks while walking over carpet, don't play with a van de graaff generator or tesla coil, simply touch something like the pc case if you are that worried.
Handling the eprom isn't going to hurt it, as soon as the soldering iron touches any then it's grounded..... no way any residual static electricity is going to travel down the solder from your hand and fry it... unless you don't know how to solder correctly.
Peeling the sticker off and leaving it in the sun for a few hours/years/decades is by far a worse enemy, even then it's not going to kill anything, may corrupt it a lil and it'll need reprogramming.
Done it on a wooden table, I touched the kitchen tap before I done it.
Wood is actually a conductor, it'll have moisture trapped in it....