No but this not a fun?. You are an adult sensable peson and you know what you are trying to convey.

If i say something about your religion (if you follow one) in a mocking way and then say that oh come on i was having a dinner and wanted some fun, does it look logical to you. You accepted that you did it in a mocking jesture. This is bad. Ask question about Islam but dont try to mock by having some fun.

Answering your question now, if you are an educated person then field astronomy is a big knowledge which cannot be ignored by the modern surveying methods even today. When i was a student in civil engineering we were taught to find the bearing of the line using sun (during the say) and the moon (moon during night) even in this modern era. It is always a double check on every work done by the most modern theodolites even today.