A homeless thug carried out a bottle attack on a man who tried to give him money.

Mark Griffiths, 34, hit Alan Brown in Glasgow's Argyle Street in February this year.

The 47 year-old victim was left scarred for life after suffering a facial wound.

Griffiths was on four separate bail orders when he struck.

He now faces a jail-term after he pled guilty to assaulting Mr Brown to his severe injury and permanent disfigurement.

Griffiths will learn his fate next month.

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Glasgow Sheriff Court heard Griffiths had been sleeping rough in the city centre.

Prosecutor Marie McCue said: “Mr Brown saw the man sitting on the pavement and offered him £10.

“Griffiths became flustered and annoyed."

Griffiths initially swung a punch before smacking the victim with the bottle.

Mr Brown fled to a nearby casino and a 999 call was made.

Police soon held Griffiths, who stated: "Aye, I did it - but he kicked me first."

Police cautioned and charged Griffiths.

He told them: “Aye, I did it, but he kicked me first.”

Mr Brown needed six stitches for an injury to his cheek.

Ross Yuill, defending, said Griffiths claims Mr Brown had made a comment of a "sexual nature" to him.

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The lawyer added: "This made him jump up. He was not flustered by the offer of the £10 nor was he impressed at all."

Sheriff Joseph Platt asked to view CCTV at the hearing next month.

He said: "A defence position has been made, but it may not be true, so I will continue the case for these other factors."

Griffiths was remanded meantime.