This offence took place in Lea Road, Gainsborough, in the afternoon on 11th October.
Alan Forrest, 53, of Kings Street, Gainsborough, tricked his way into the pensioner’s home asking for a glass of water. He then threw the water at the woman, pushed her to the floor and demanded cash. The victim used a personal alarm to call for help and Forrest ran off.
Forrest was sentenced at Lincoln Crown Court last week.
DC Tina Kennedy said: “This was a cowardly attack on a particularly vulnerable member of our community. We hope this sentence sends out a very powerful message to offenders and demonstrates out commitment to tackling serious violence in Gainsborough.”