[He seems a bit incredulous.] It would be even less risky to wait somewhere else, have everyone gather as close as possible to whatever exit point you're planning to use, and generally not stay here any longer than you really have to.

Not that I'm not happy to see you, but... I'm not sure. That's just a taser, isn't it? I'm sure you know what you're doing, especially since you spent such a long time monitoring us, but I'm still concerned.

Doing it this way could make you seem more sincere, though.

[He brightens.] It's really too bad that we're meeting under such serious circumstances! I always hoped that we would run into each other again. I was here all by myself for months and months - I wish you could've visited then. I could've made a cake.

You like cake, right?