Every restaurant owner wants customers to keep coming back, but one has taken this desire a bit too far.

A noodle shop owner in Yan'an, China admitted that he's been putting opium poppy seeds in his food to keep customers addicted, BBC reported this week.

His crazy scheme was uncovered after one of the customers tested positive during a urine test required from traffic police. The victim Liu Juyou, who was in custody for 15 days, insisted he didn't use drugs and blamed the food he ate from the shop. He then told his relatives, who are also frequent customers, to take a drug test and each one came back positive.

The restaurant owner, Zhang, then confessed to his misdoing. He said he bought 4.4 pounds of the specific poppy seeds for $100 in August. He made the seeds into powder and added it to the noodles.

These seeds, police said, eventually build up in a person's system and show up on a drug test.

Juyou has since been released from jail while the restaurant owner is locked up.

The bizarre story garnered many reactions on Twitter. Check out some of the reactions below:

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