Drawing A cartoon Hitler with the words 'Hitler is gay'. If said picture got into the hands of hr would it be a sackable offence or just a telling off?
"Hitler is gay" is such a lazy insult. There's an entire dictionary of fantastic words that could be used to describe the man. Instead, someone chose to label him a homosexual, as if being a homosexual is something as villainous as attempting to wipe out an entire people.

Drawing A cartoon Hitler with the words 'Hitler is gay'. If said picture got into the hands of hr would it be a sackable offence or just a telling off?
Are you 12? That would be the only possible explanation for why you would do this and if you are 12 you must only have a paper round or something so no I wouldn't worry.