If you put full-fat milk into your tea, sometimes a 'skin' will form on the surface as the milk reacts to the heat. I always used to fish it out with a teaspoon, because eew, but my parents would stir it back into the tea. It had a puckered look, and depending on how strong you like your tea could certainly resemble human skin.
(Fortunately I switched to semi-skimmed years ago and haven't seen it since.)
If you put full-fat milk into your tea, sometimes a 'skin' will form on the surface as the milk reacts to the heat. I always used to fish it out with a teaspoon, because eew, but my parents would stir it back into the tea. It had a puckered look, and depending on how strong you like your tea could certainly resemble human skin.
(Fortunately I switched to semi-skimmed years ago and haven't seen it since.)