Trio admit charges following fighting that ended in handshake.
When the victim dropped his phone, as he tried to pick it up, he was kicked in the face, heard Inverness Sheriff Court.
The attacker threatened to stab he victim if he reported the robbery to the police, Inverness Sheriff Court heard.
The court heard a heart-wrenching impact statement which revealed the life-changing trauma inflicted on the senior citizen.
When he couldn't remove it, he had to be taken to hospital, the court heard.
He also unleashed a flurry of punches and kicks on his unconscious victim.
Inverness Sheriff Court saw a huge mix of criminal business in June.
The sheriff who heard details of the case said he accepted the explanation given.
He hid from colleagues after stealing the cash from a safe.
He also spat in the face of the police officer but avoided a jail sentence.
Words had been exchanged between the pair before they went outside
She was accusing her partner of being a "grass" during the attack.
He targeted businesses in Inverness and Alness as well as a private house while the owner was asleep.
He admitted a course of domestic abuse against his former partner.
Supermarket staff were threatened and abused.
The details of what happened were related at Inverness Sheriff Court today.
Defence solicitor said: "There had been some to-ing and fro-ing between them because the other boy had been messaging my client's partner."
Police conducted a roadside test in Barn Church Road.
A Post Office worker became suspicious after receiving a parcel.
Police became suspicious when a Mercedes car behind their patrol vehicle was reluctant to pass them.
