Dean won't accept your visit until the bell rings.

Your lecture is so boring? Maybe you could make the time go faster.

You have the small anomaly going on, right?

Make it bigger.

You just need to make the platypus more motivated.

Show it another platypus. There is an albino platypus in the tower. Catch it

Nice. Now, just put the platypus basket on the table. The other platypus will go wild.

The larger anomaly indeed makes time fly and the bell rings!