Argh! Dilemma time!

[slycat]

OK, I just found out that my parents had arranged a pub lunch type meal on Saturday in honour of my Mum's 50th birthday. However, on the same day, I'm supposed to be going to London for the fur meet to help celebrate both Glis's and Shinji's birthdays. Now, I couldn't really care for missing a meet as there will always be another one but I regard both Shinji and Glis as good friends and would like to celebrate (Get drunk) with them...

Then on the other hand, what sort of a son would I be if I was unable to attend my Mum's 50th birthday? This is a milestone birthday so I think I owe it to my Mum for all the work she's done for first of all giving birth to me and then putting up with me and looking after me for all these years...

I really don't know what I should do. I want to do both of course but each has their good and bad points...

Help!