My dad had a stroke, a few summers ago luckly my brother was there to get help. He was in the hardware getting a mower belt, he seemd to be confused a little when at the check out counter, got to the truck dropped his keys twice in a row, got in the truck and seemed really confused, kept saying "whats wrong with the truck it wont start" he never had the keys in the ignition, all the time pulling on the gear shifter.....then he started slurring his speach etc, He kept saying nothing was wrong, his mouth was drawn at this time, he starts getting angry cursing at everyone trying to help this is not normal, luckly a passing nurse wittnes this and got help, he would have driven off, and hit someone....he recovered well, but there is always changes, and brain damage always come with it.