Dr. Lecter
Contributor
I dropped off a set of doubles a week in advance of a trip to be filled with 32%. They came back with 2300 psi of 27.5% ( in LP 85s with the "+" rating) and to add insult to injury, they had removed my custom name stickers from Dive Signs in the UK and slapped on a pair of PADI Nitrox bumper stickers, for which they expected me to pay.
Wow, and I got a little grumpy when someone who should have known better tried to tell me my stage-slung, MOD-marked deco tanks "had" to have nitrox labels on them and then hemmed and hawed when I asked how he'd deal with the GUE types whose actual certification standards only allow for MOD markings and put the viz on the bottom of the tank.
I'm really not sure how I'd react if someone just took it upon themselves to put such a sticker on my tank while I was away, but my first words would probably be along the lines of "Get that ing thing off my tank before I decide to garrote you with your own fill whip."