A man who broke into a home business in Los Angeles was in no rush, taking the time to smoke, charge his phone, and even to watch pornography, security footage shows.

The intruder appears to have sneaked into the hair extension business through a vent on Monday night, the store's owners, Lisa and Steve Mirizzi told KTLA.

The couple, who lives in an apartment upstairs with their family, shared how they first noticed and then confronted the man, who has been identified as 28-year-old Alan Estrada.

Lisa and Steve Mirizzi were startled when they found an intruder in their Los Angeles hair-extension business. They live in an apartment upstairs with their family

Lisa said she went downstairs to make some tea and found the man sitting at the computer watching porn and masturbating, according to the Los Angeles Daily News.

She screamed as soon as she noticed him, prompting her son and husband to run down the stairs. The father and son then chased the intruder from different directions, Steve said.

Estrada tried escaping through one door but realized he couldn't because the door had a padlock on it. When he tried fleeing again, the couple's son Giovanni managed to stop him.

Alan Estrada, 28, was caught on camera smoking and watching pornography

Lisa said she went downstairs to make some tea and found the man sitting at the computer watching porn and masturbating

After Giovanni 'decked him, picked him up and body-slammed him', police were called to the scene and the intruder was arrested, according to the family.

'It almost felt like a dream because it's like, 'Is this really happening?'' an amused Lisa said to KTLA.

The intruder, who brought the pornography on a disc, also allegedly took cash and credit cards from the store, police said.

The security footage shows Estrada walking around the establishment, and settling in on a computer while he smoked.

Since the cash and credit cards stolen have been returned, the family feels ready to let go of the bizarre incident.

Steve said: 'We could laugh about it.'

After the couple's Giovanni (left) 'decked him, picked him up and body-slammed him', police were called to the scene and the intruder was arrested (picture right is Steve)