Hi Andy,
The removal of the catheter is a major milestone in your recovery and one that usually goes without a hitch. Nothing to worry about, honestly. If it was I would say, no point dressing anything up and you getting a fright.
Now, as you are having your TWOC so near to Christmas, I would prepare for a few hiccups and issue just in case. I found that after my TWOC I leaked a lot, some others hardly leak at all and are as dry as the sand in an egg timer straight away. I found tat after TWOC I was so knackered trying not to leak and remain active that come the evening I was exhausted. I would then give up trying to stay dry and go with a Convene uri-sheath. A condom like device with a spout at the end which I would connect to a leg bag when I was just peeing myself all the time. I was using 4 level 2 pads a day for some weeks, and at night would "bag up'.
Now you may be dry straight away, but if you are not it may be worth your while asking about conveens and leg bags, JIC. I do recall that not every HT offers them. Have you also got waterproof sheets etc?
Excellent news though regarding TWOC, another sign that your recovery is going in the right direction.
ATB
Dave