Supposedly he selected it sober, and drank as it was being done. It also took a lot longer than the artist quoted to get to where it is now.
I was not forced to sign that I'm sober, while getting my tattoo, but that probably depends on the country. I got mine, while working abroad in Ireland.
However, the vast majority of tattoo artists (no matter where they are), tell you to come in sober, and stay sober at least 48 hours after they're done.
Most reputable tattoo places, give you some version of this disclaimer:
"Do not drink alcohol for 48 hours after getting a tattoo
. In fact, you shouldn’t drink for 24 hours before getting a tattoo either. Your new tattoo will be considered an open wound, and alcohol delays the body's healing process. Alcohol also thins the blood, which can cause excess bleeding and setback the natural clotting and scabbing necessary for recovery. Alcohol affects both the body and the mind, and also disrupts consciousness and emotions, as evidenced by the many tattoo artist error stories where people pass out during their tattoo, cry uncontrollably, and throw up."
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source (random example, found on Google)
That being said, I wouldn't be surprised if the guy gave up on it, the moment he saw Rekieta walk in, looking the way he usually looks these days.