Leaks are usually unintended and therefore undesired. Extinction can be intentional or unintentional and happens when you ignore an undesired behavior. Removing distractions that induce undesired actions or adding a prompt to induce it are examples. This mucin prevents the blastocyst from implanting in an undesired located on the epithelium. Desired behavior is rewarded, while the undesired behavior is not rewarded. In management, behaviors are associated with desired or undesired focuses. A risk is an integrated assessment of likelihood and severity of an undesired event. Contingency contracts have been seen to be effective in changing any undesired behaviours of individuals. This ensures that the filament does not sag, and no undesired changes occur. Parents commonly spank children or adolescents in response to undesired behavior. Socially, such erections can be embarrassing if they happen in public or when undesired. Secrecy could be realized by making the modulations in undesired directions difficult to decode. Apoptosis and pruning are the two main methods of severing the undesired connections. Concerns over undesired pregnancy and procreation were additional considerations. Instead, solvolysis by methanol occurs, which gives the undesired methyl propionate side-product.