For goodness sake, what will make a pilot who claims to have appropriate "situational awareness"

to be PIC of an aircraft, let his/her medical expire and then go for a proficiency test for licence revalidation?
You know what, if I am a CFI or examiner that is confronted with this situation, I will never take that pilot serious.
What do you think will happen if an accident occur under this circumstances and it is determined that the pilot was in the left seat without appropriate medical requirements?

The result will be a lenghty discussion in this forum about medical requirement.
It is simple. Don't even dream of jumping into an aircraft without current mdecial.