Inconsiderate Slob

Well some of it is going in his mouth ... Why did they put the bowl on the table ?

Likely because they knew this would happen so they could make it into a gif.

That's what I thought ... So not an inconsiderate slob ! 😁

However in looking at the other stuff on the table and how that appears to be what either was a bowl of cereal or was going to be one. Perhaps the person left it sit there unattended to go to the bathroom for example and the cat decided to get on the table and drink it which not only makes it an inconsiderate slob but a thief as well. The plastic bag by cat's head looks like the plastic inside cereal boxes with some cereal in it still. I'm now wondering if they went to the bathroom or had to run and grab their phone to answer a call and the cat decided to use that opportunity to drink the milk. It appears like totally clean milk as not not like milk would with what looks like dark pieces of cereal in that bag which suggests this cat is worse than my accusation. My cats do stuff like this all the time. You turn your back they steal your food then act innocent. Hmm I think I went too easy on this cat in my further observation of the contents of the gif. Haha. Turkish cats are even more brazen.

Although it seems odd that they'd put the milk in before the cereal and that's a lot of milk but I have seen some do it backwards from most before so idk. I just assume the cat is guilty since they usually are. :D

Now that is another comprehensive answer.
One thing that is curious: Even if the bowl were momentarily unattended, why would they film the result and not put it on the floor ?
I suppose they could have discovered the 'crime' taking place and thought, 'this would make a good video'
Either way, the cat got the milk and all were happy 😁