When the kids were home, we had to be cautious on April Fools Day, however with just Maryann and I here, if it wasn't for the Internet, it most likely would be just another day.
I did wonder though what the origin of April Fools Day was and did find the following on the Internet:
http://www.southcom.com.au/~seymour/aprilfool/april.htm (http://www.southcom.com.au/~seymour/aprilfool/april.htm)