This is something that Jacoby actually doesn’t do.
However, I think that’s because we have a shower curtain on a rod rather than sliding glass doors…
The drinking Aby is actually based on this non-Aby, shower-drinking cat named Riley. According to his human, he’s been doing this every morning for nine years! So, thanks to Riley and Photogregs for a great reference!
(Click cartoon to embiggen, or you can view all cartoons in Slideshow mode on Flickr.)