annoyances

anyone else hate how, when writing dialogue, people often use numerals to express spoken numbers?

for example when telling time people write

"the sun sets at about 8:00 PM"

when i think it should read

"the sun sets at about eight o'clock"

any other literary things that annoy /book/?

I hate when a writer goes too long without indicating who's speaking. Especially when it's not the standard "character 1 speaks, then character 2 speaks", but "character 1 speaks. character 2 speak, and then character 2 speaks again."

Gets confusing real fast.