Have you ever let someone else's bad day rub off on you? Has their unhappiness wormed its way into your heart?
Yes, it can happen, can't it? Whether it's someone you love and perhaps even share a home with or it's a coworker or someone in a retail establishment, if we aren't aware and awake, we can be taken down a rabbit hole just like that.
If someone sprays their anger or bad day all over, don't let it soak into you. You do not need to carry their negative energy around.
As Melody Beattie writes in her daily meditation book Journey to the Heart, "If someone splashes your windshield with mud while you're driving down the road, what do you do? You wash it off and go on your way. ... Crabby thoughts and crabby emotions can be like mud. If someone splashes you, wash off your windshield, send them a blessing, and go on down the road."
What a great image! Yes, wash it off, bless them and go on your way. Let the crabbiness roll right off. You have a choice. Choose to stay happy.