Super Snail!

Wet stuff is falling from the sky, not sure what it is... No doubt this will mean I will have to mow the grass at the weekend now. Spotted this super snail on our living room window, which is pretty high up. S/he either has no sense of direction or hasn't been to Specsavers. The moment I began blipping s/he decided the atmosphere was too rare and turned about. Wonder how many weeks it had taken for Supersnail to reach that point?