Hoodwinking

I'm as honest as the day is long which means I'm more honest during the longer days of summer So if I tell you something in the winter Take it with a grain of salt There's a good chance I'm hoodwinking you If you ask me directly, of course I will lie In the middle of the summertime I'll be forced to divulge all my past exploits in lurid detail For I am unable to tell a lie In the spring and fall it's a fifty-fifty proposition Maybe I'm lying, maybe I'm not! Have I totally confused you? I need to go lie down!