As I said before, less than 1% chance of it coming off.
When the tape breaks down, the glue becomes gooey.
At that stage you could slide the piece across your head, but it will still remain attached.
Believe me, you'll know when or if it happens and the likelihood is that it will only break down at the hairline, but will still stay in place.

If that happens but its still secure at the back & sides, lift just the front and use the alcohol to wipe the lace. A corner of a towel is good for this or a small hand mirror (look up 'mirror slide') and clean the scalp with alcohol too.
Then reattach.

It would be better to do this BEFORE the tape breaks down, as its easier to clean.
If its started to lift already, then its probably a good time to do it.
You'd apply the lace release, lift the front, remove the tape, wipe with alcohol and reattach using new tape or the spiking glue.