"They say a little knowledge is a dangerous thing, but it is not one half so bad as a lot of ignorance." TerryPratchett, Equal Rites

 

(ex update, jog with dog am 4.6 miles, ytd 1339.6 miles.  1 mile warm up/cool down walk. Walk ytd 608.6 miles.  Run/walk total 1948.2 miles)