You can just say I had some emergency, or the gremlin lady ate me or something.

7 seconds sound clip from the Hotel Transylvania movie soundboard.

You can hear this line at 00:56:50 in the Blu-ray version of the movie.

Quote context

[...]

- It's all right. You are a good one.

- If the world was different, maybe it would be possible.

- Drac, this is the 21st century. People aren't the same as they were back then.

- Can you tell me for certain that if we came out in the open, everyone would accept us? Everyone?

- No. You're right. I'll go for good this time.

- You can just say I had some emergency, or the gremlin lady ate me or something.

- No, no, no, no, no. I don't want to ruin her birthday party.

- You can sneak out after it's all done.

- I'm sorry. The last thing I wanted was to hurt her. Or you.

- You know, you're not the smoothest Frankenstein, but you'd make a great vampire.

[...]