So, you had a bad day. Didn't we all? Well, if not this day then maybe another.
But, maybe you had a chip on your shoulder, too. Perhaps you told someone to 'kiss off'. Ok, well, maybe you don't use that expression.
What you might have said is 'bug off', 'leave me alone', 'go away', 'get lost', 'suck an egg', 'kiss my foot', or something a lot more unkind.
Maybe you didn't mean anything by it, you just wanted some time alone. And, sure, you're probably right. It wasn't the end of the world. Hopefully, they'll get over it. The question is, "Will you?"
Of course, next week, you both might have forgotten the incident ever occurred. However, even so, it could come up again. One day, you just might wake up (or be awaken) to realize that your every act of unkindness was actually done to Jesus. Talk about a bad day!
... Know ye not your own selves, how that Jesus Christ is in you, except ye be reprobates? 2 Cor. 13:5
I in them, and thou in me ... John 17:23
To whom God would make known what is the riches of the glory of this mystery among the Gentiles; which is Christ in you, the hope of glory. Col. 1:27
Inasmuch as ye have done it unto one of the least of these (or inasmuch as ye did it not to one of the least of these), my brethren, ye have done it (or done it not) unto me. Matthew 25:40, 45