Put the summary of the bug you're having here
What I expected to happen was...:
Right clicking with a ladder on a block would place the ladder on the block.
What actually happened was...:
The block was not placed and the game crashed.
Steps to Reproduce:
1. Take a ladder
2. Attempt to place it on a block
Environment
OS: Mac OS X (ver 10.9.4, arch x86_64)
Java: 1.6.0_65 (by Apple Inc.)
Launcher: Minecraft Launcher 1.4.4 (bootstrap 5)
Minecraft: 14w28a (updated Wed Jul 09 11:42:36 EDT 2014)
Fixed for a future version. MC-61066