I'm glad you guys are talking about this! I need to tweak my approach a bit - thanks, Michelle! Jessie will eventually drop the toy, bone, dish towel, shoe, slipper, dead bird eventually.... LOL! But it does take her awhile sometimes. Labs can be very stubborn and quite determined. I vascillate, incorrectly I may add, from saying, 'leave it' to 'drop', so I'm not being consistent with the word command, which is probably why she gets confused and has that, 'you talkin' to me?' look in her eye lol... 'Leave it' should only be used when we come across something, say, on a walk that I don't want her to get into. 'Drop' should only be used when she already HAS something in her mouth lol...
