A registered sex offender headed to a North Vancouver birthday party with his mother and daughter was among those turned away at the local borders in recent weeks.

According to Canada Border Services Agency, the trio sought entry to go to the party on Nov. 12. Officers deemed the man ineligible and returned him to the U.S. after it was discovered he had been convicted on two counts of rape.

That same day, a couple returning to Canada after a day trip to Seattle reacted badly when border guards discovered an undeclared $4,000 Cartier watch in their vehicle. They had declared less than $100 in goods.

One of the pair became extremely belligerent, argumentative and even threatening, CBSA officials said.

They were sent on their way after paying a $1,200-fine.

One traveller planning to walk to California to join a monastery finished the journey short when a B.C.-wide warrant was discovered.

Canadian guards investigated after the Remembrance Day hiker was escorted back to Canadian soil by officers with U.S. Customs and Border Protection. The individual was arrested and held for police.

Nov. 9, officers turned away a woman who claimed she was traveling with documents that had embedded messages predicting disasters.

The documents were sent to her through the media, she told guards.

The woman – who had no proof of citizenship or funds and stated she had been staying at a mental institution – was returned to the U.S. without incident.

Two days prior, Canadian guards turned three individuals over to U.S. officers after it was discovered the trio were not family, as they claimed to be.

One aroused suspicions when he did not look like the person depicted in the passport he presented as identification, then heightened doubts as he attempted to explain the differences with a story officials say was "plagued with inconsistencies."

The man eventually admitted he did not know the two other travellers, and that he had paid a third party – the true owner of the passport – to have the others smuggle him across the line. In investigating further, the guards discovered one of the other two travellers was also using someone else's passport.

All three were turned over to U.S. border guards.

Last but not least, Canadian border guards alerted their U.S. counterparts to a potential threat Nov. 2 after a nervous northbound man told them he had a friend waiting for him at the Blaine duty free shop with a handgun.

Guards confronted the driver after discovering he had a licence to carry concealed firearms, and that his luggage contained ammunition and target silhouettes.

CBSA officials say the man was also travelling with luggage belonging to a third party who had previously been denied entry to Canada, leading officers to believe the third party may be a border jumper.

An individual matching the waiting friend's description was located and detained by U.S. border officers.