Police officers attending a report of a girl having been assaulted were warned they would be headbutted.
Richard Hart of Castlegate in Grantham told officers responding to the call “I will headbutt you, you and you”.
The incident was exacerbated by it having occurred in Welham Street, Grantham, an area described by prosecutor Daniel Pietryka as being “predominantly occupied by pensioners”.
When Hart was arrested following the threats, he told officers: “I can still headbutt you or get an elbow in.”
However, Rory Macmillan, defending, said the threats were not made in an aggressive way.
He said: “Mr Hart admits he did say, but not in an aggressive way, that if the officers did not let him out he is going to end up headbutting somebody.”
Mr Macmillan added: “He could not quite believe it when he found himself in a police car.”
Hart, 26, admitted a charge of being drunk and disorderly in a public place, as well as breaching a community order and breaching a conditional discharge.
The court heard the community order related to an assault on a police officer in September of last year.
The officer was kicked by Hart.
The incident culminated in Hart getting hold of a policeman’s mobile phone whilst in a cell at Grantham police station and throwing it down the toilet.
The conditional discharge was imposed when Hart went into a bingo hall and stole £100 in what was described in court as an “opportunistic theft”.
Mr Macmillan told the court Hart had gone without alcohol for six weeks but fell off the wagon five weeks ago when he split with his partner of 10 years.
Mr Macmillan added: “He went off the rails and started to binge heavily, drinking for three weeks, all day, every day.”
Magistrates sentenced Hart to eight weeks in prison suspended for 12 months.
He must also pay £140 in fines, a £20 surcharge and £50 costs.