A panel beater who shot and killed a man outside his Thomastown factory had consumed 54 to 68 bongs and 39 to 42 stubbies of beer on the day leading up to the shooting, a court has heard.

Ivan D’Angelo told a Supreme Court jury on Thursday how he would wake up with a ‘‘brekkie bong’’ and then start drinking and smoking marijuana for the rest of the day until he went to bed.

The only thing he had to eat during the day before the shooting was two slices of pizza, at about 8.30pm.

Defence barrister Peter Faris, QC, provided the jury with a chart detailing Mr D’Angelo’s drinking and drug-taking habits.

Asked how he was able to carry out skilled panel work when drinking so much beer, Mr D’Angelo replied: ‘‘Pretty much before I even started my apprenticeship, my brother's friend was teaching me how to panel beat and I've learnt to drink while I work, it's a normal thing for me.