# case 1: using MC_cycle(0, @colors);
[jandrew:~]$ perl foo.pl 
Illegal division by zero at Cycle.pm line 29.


# case 2: using cycle(0, @colors);
[jandrew:~]$ perl foo.pl 
Hey stupid, you are supposed to call me like this:
        Cycle::cycle(positive_integer, some_list)
Not like this:
        Cycle::cycle(0, 'red', 'white', 'blue') called at foo.pl line 6