Seal Pup Trying To Bite Heather Mills McCartney

The video consists of a brief interaction where one person refers to another as a 'tough guy' and then mentions they have to leave.

What does the phrase 'Tough guy' imply about the speaker's attitude?

How do you interpret the tone of the dialogue based on the phrases used?

What context do you think led to the statement 'Tough guy'?

What might be the reason for the speaker to say 'Well, I've gotta go'?

In what situations might someone say 'I've gotta go'?