LOOK Starbucks serves one hell of a latte

Most of us have been served misspelled names by baristas but a Louisiana schoolteacher got an unexpected extra on her visit to Starbucks over the weekend.

Megan K. Pinion was in for a shock on Sunday when her morning joe came topped with satanic symbols drizzled in caramel – coincidentally on the Day of the Lord.

Pinion went to Starbucks' Facebook page to vent her irritation, together with a long post describing the offensive cups of coffee.

"The star is almost okay because it is in your Starbucks logo, the 666, however was quite offensive. I am in no way judging his beliefs or dis-meriting his beautiful artwork, I am however judging his lack of professionalism and respect for others."

She adds: "I am a teacher in the public school system and if I were to present a child of atheist of pagan believers with a Christian art project I could be sued in a heartbeat.

"I am of Catholic faith and would love to share my beliefs daily. Fortunately I have enough common sense to present myself with professionalism and follow and ethics code. Perhaps that could be suggested to that particular location."

Pinion confirmed that Starbucks already made a formal apology after seeing her post  and is currently investigating the issue. The barista who served the drinks was not identified or whether he will keep his job.