Little Giles in the comics does look an awful lot like the love child of Harry Potter and William Pratt (pre-Spike) doesn't he? (You were right about the Giles - William resemblance - by both Levins and Isaacs - but I don't think it's intentional.)

Giles and the tea: OTP!

It's probably the only deeply satisfying and lasting relationship he's ever had, poor Giles. Tea is always there when you need it.