Exhausted dog is too tired to even yawn

Have you ever been so tired that you don’t even have the energy to yawn? This thirteen year old Australian Shepherd is so beyond exhausted that she can’t even muster up a yawn, although she just keeps on trying!

Watch as this exhausted dog struggles to keep her eyes open, weaving her head and opening and closing her mouth as she tries so hard to get a yawn out! She gets there in the end, but the process is hilarious to watch!