[Sans replies to Mia and then he looks at the umbrella and the cabana he's hanging out in right now.]

Okay, so I don't think my roommates are gonna be happy if this blows this place up or somethin', so hang on a sec.

[Sans will carry the umbrella out a little ways to the beach to set it down.

This feels anticlimactic.

Wait, he's got it.]

Guess I've just gotta... Make it rain.

[And he drops a line of twelve bones from the sky directly onto the umbrella to pierce it through.]