Jack went one Friday night to Brad's Pub, where a glass of beer costs $2.00 and a shot of whisky costs $2.00, and he drank 6 glasses of beer and 4 shots of whisky. The next Friday night, he went to Mickey's Bar where a glass of beer costs $1.00 and a shot of whisky costs $3.00, and he drank 2 glasses of beer and 6 shots of whisky. Assuming Jack's preferences over beer and whisky did not change, was his behaviour consistent with those of a rational consumer model?

Draw the two budget constraints and explain your answer.