Modern day equal of proverbial 'canary in a coal mine'?
But why restrict it to second year.
Are you suggesting that third and four year classes should never be taught by sessional lecturere?
You never know. I coud be effective marketing.
Second years are often out of dorms, and soon realise the goofs they paired up with toshare an apartment.
Maybe you teach a class in investment real estates and how condos can be a good investment.
Only works if class is located well clear of Toronto.