A ghost is believed to have knocked a pint off a table in a 300-year-old haunted pub.
Pub manager Natasha Magnan confronted drinkers after beer entered up on the floor.
One said that the full glass of Coors just fell off the table and it left him with goosebumps.
Shocked Natasha, 37, was then left stunned when she watched it back on CCTV at the 300-year-old White Swan Inn, in Dunstable, Bedfordshire.
The pint appears to suddenly plummet onto the ground despite no one being near it.
It is feared the pub has been targeted by ghouls before.
But Natasha thinks a former regular Chris Harris, 84, may have come back to haunt them this time and is behind the moving beer to play tricks on them.
Natasha said: "There was quite a large group of people and I said 'You are making quite a mess, what's all this beer on the floor?'
"And one of the boys said that wasn't me.
"I was like 'Yeah alright then not believing them' and they were like 'I promise you that it just fell now, look at my goose pimples.'"
One of the staff persuaded Natasha to check the CCTV footage to see if the lads were telling the truth.
The security camera footage, filmed on February 13, shows a full pint glass sitting on a table as nearby customers sat chatting in their seats.
Suddenly the glass topples off the table, despite none of the punters touching it.
Natasha recorded the CCTV footage and can be heard pointing out the blurry hand of a "spirit" around the pint and the candle fluttering uncontrollably on the table.
She said: "Looks like a hand pushed the pint off, the pint goes a bit fuzzy.
"One of our regulars recently died so we thought it might actually be him."
She has been working at the pub for the past 20 years and says there have been several unusual sightings by staff and customers.
She added: "I have been working for 20 years and really haven't seen things like this, I have heard things.
"All of the staff have heard things about the things going on in the pub for so many years.
"I felt things like there were people walking past me when there was nobody there.
"Last Sunday, I moved out of the way of a dog but there was no dog in the pub on that day.
"One time when I closed the pub I made sure to lock all the windows shut but when I left I noticed that something had opened one of the top windows without anyone else being in the pub.
"Staff have felt like somebody has been watching them.
"The cleaner saw somebody near the toilet door but seconds later there was nobody there."
The activities of the spirit in the pub have increased in the past two weeks, according to Natasha, and she believes it could be due to a clairvoyant evening due to be held at the pub.
She said: "It has been creepy for the last two weeks, normally nothing has been bothering us but we have a clairvoyant evening coming up.
"So I am just wondering if they are coming out because of that."
The pub used to be a police station before it was converted - and during its time as a police station housed hardcore prisoners inside.
The cellar, which is like a curved road, contains the concrete beds where the prisoners used to sleep in the police station.
Ms Magnan posted the CCTV footage of the pint being pushed on the pub's social media page.
One viewer wrote: "Always been a spooky pub."