Ways to Annoy Bartimaeus....
We don't have 50 yet, but considerably less than that. Please, if you have your own, submit them!

1. Mention to him casually that you can see onto the eighth plane.
2. Call him unintelligent and lacking in subtlety.
3. If you're another demon, take Ptolemy's form.
4. Imprison him in an amulet.
5. Compare him to a human.
6. Threaten to imprison him in a box of rosemary.
7. Make sure he's silent and unseen.
8. Call him an imp.
9. Summon him.
10. Force him to spend time in the rain.
11. Call him an evil, miscreant demon.
12. Force him to obey a 12 year old.
13. Threaten him with silver.
14.Tell him you’ve never heard of him
15.Remind him that Solomon can’t have been too impressed with him if he needed 10,000 other spirits
16.Tell him that catacombs probably do not need defending in battles and that those who hide in them are probably scared
17.Remind him that, if you’re being technical, he doesn’t really have a brain
18.Ask him to perform a song from the Disney version of Aladdin
19.Make him take orders from Faquarl
20.Make a big show of looking for any record of his great history and come up with nothing but a footnote
21.Read out loud from Ptolemy’s Apocrypha, and invent a section in which Ptolemy describes the incompetence of his demon Rekhyt
22.Trap him in a boom box that is playing “Walk Like An Egyptian”
23.Innocently remark that you’d rather summon Jabor for the job than deal with his vanity
24.Challenge him not to say anything rude or sarcastic for a day…and be constantly checking that he hasn’t done so
25.Tell him that a fluffy bunny rabbit would be scarier than him

Thanks to ValkaryeRaven for the last 12!