I think even without that context it ought to have been clear that the entire message is written to be humourous - not having a dig at you, maybe English isn't

I think even without that context it ought to have been clear that the entire message is written to be humourous - not having a dig at you, maybe English isn't your first language or maybe you just have a different sense of humour to me, just saying that this was designed to be funny to all, not to those who spot the in-joke.