Can we draw the following hypothesis from the context (see options)? 

Context:

Dooty is dooty , messmates .<br>I 'll put on my old cockerel hat , and step along of you to Cap'n Trelawney , and report this here affair .<br>For mind you , it 's serious , young Hawkins ; and neither you nor me 's come out of it with what I should make so bold as to call credit .<br>Nor you neither , says you ; not smart -- none of the pair of us smart .<br>But dash my buttons !<br>That was a good un about my score . ''<br>And he began to laugh again , and that so heartily , that though I did not see the joke as he did , I was again obliged to join him in his mirth .

Hypothesis: the joke was humorous
Select from:
 - Yes.
 - It's impossible to say.
 - No.
It's impossible to say